Home / 39,330.44-54,276.02-21,425.45

Finding the Fourth Proportional to 39,330.44, 54,276.02 and 21,425.45

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Solution

The fourth proportional to 39,330.44, 54,276.02 and 21,425.45 is: 29,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.44 : 54,276.02 = 21,425.45 : x
  2. Step 2: Convert to fraction form
    39,330.44/54,276.02 = 21,425.45/x
  3. Step 3: Cross multiply
    39,330.44x = 54,276.02 × 21,425.45
  4. Step 4: Simplify right side
    39,330.44x = 1,162,888,152.71
  5. Step 5: Solve for x
    x = 1,162,888,152.71/39,330.44
  6. Step 6: Final answer
    x = 29,567.13

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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.