Home / 39,214.22-54,114.53-21,308.63

Finding the Fourth Proportional to 39,214.22, 54,114.53 and 21,308.63

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Solution

The fourth proportional to 39,214.22, 54,114.53 and 21,308.63 is: 29,405.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,214.22 : 54,114.53 = 21,308.63 : x
  2. Step 2: Convert to fraction form
    39,214.22/54,114.53 = 21,308.63/x
  3. Step 3: Cross multiply
    39,214.22x = 54,114.53 × 21,308.63
  4. Step 4: Simplify right side
    39,214.22x = 1,153,106,685.95
  5. Step 5: Solve for x
    x = 1,153,106,685.95/39,214.22
  6. Step 6: Final answer
    x = 29,405.32

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.