Home / 39,060.52-53,903.25-21,155.12

Finding the Fourth Proportional to 39,060.52, 53,903.25 and 21,155.12

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Solution

The fourth proportional to 39,060.52, 53,903.25 and 21,155.12 is: 29,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,060.52 : 53,903.25 = 21,155.12 : x
  2. Step 2: Convert to fraction form
    39,060.52/53,903.25 = 21,155.12/x
  3. Step 3: Cross multiply
    39,060.52x = 53,903.25 × 21,155.12
  4. Step 4: Simplify right side
    39,060.52x = 1,140,329,722.14
  5. Step 5: Solve for x
    x = 1,140,329,722.14/39,060.52
  6. Step 6: Final answer
    x = 29,193.92

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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.