Home / 39,123.48-53,919.90-28,496.28

Finding the Fourth Proportional to 39,123.48, 53,919.90 and 28,496.28

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Solution

The fourth proportional to 39,123.48, 53,919.90 and 28,496.28 is: 39,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,123.48 : 53,919.90 = 28,496.28 : x
  2. Step 2: Convert to fraction form
    39,123.48/53,919.90 = 28,496.28/x
  3. Step 3: Cross multiply
    39,123.48x = 53,919.90 × 28,496.28
  4. Step 4: Simplify right side
    39,123.48x = 1,536,516,567.97
  5. Step 5: Solve for x
    x = 1,536,516,567.97/39,123.48
  6. Step 6: Final answer
    x = 39,273.51

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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.