Home / 39,461.83-54,458.49-21,557.13

Finding the Fourth Proportional to 39,461.83, 54,458.49 and 21,557.13

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Solution

The fourth proportional to 39,461.83, 54,458.49 and 21,557.13 is: 29,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.83 : 54,458.49 = 21,557.13 : x
  2. Step 2: Convert to fraction form
    39,461.83/54,458.49 = 21,557.13/x
  3. Step 3: Cross multiply
    39,461.83x = 54,458.49 × 21,557.13
  4. Step 4: Simplify right side
    39,461.83x = 1,173,968,612.39
  5. Step 5: Solve for x
    x = 1,173,968,612.39/39,461.83
  6. Step 6: Final answer
    x = 29,749.48

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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.