Home / 39,640.76-59,455.68-21,904.20

Finding the Fourth Proportional to 39,640.76, 59,455.68 and 21,904.20

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Solution

The fourth proportional to 39,640.76, 59,455.68 and 21,904.20 is: 32,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.76 : 59,455.68 = 21,904.20 : x
  2. Step 2: Convert to fraction form
    39,640.76/59,455.68 = 21,904.20/x
  3. Step 3: Cross multiply
    39,640.76x = 59,455.68 × 21,904.20
  4. Step 4: Simplify right side
    39,640.76x = 1,302,329,105.86
  5. Step 5: Solve for x
    x = 1,302,329,105.86/39,640.76
  6. Step 6: Final answer
    x = 32,853.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.