Home / 39,041.48-53,877.68-21,136.86

Finding the Fourth Proportional to 39,041.48, 53,877.68 and 21,136.86

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Solution

The fourth proportional to 39,041.48, 53,877.68 and 21,136.86 is: 29,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,041.48 : 53,877.68 = 21,136.86 : x
  2. Step 2: Convert to fraction form
    39,041.48/53,877.68 = 21,136.86/x
  3. Step 3: Cross multiply
    39,041.48x = 53,877.68 × 21,136.86
  4. Step 4: Simplify right side
    39,041.48x = 1,138,804,979.28
  5. Step 5: Solve for x
    x = 1,138,804,979.28/39,041.48
  6. Step 6: Final answer
    x = 29,169.10

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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.