Home / 39,721.86-59,582.76-10,139.70

Finding the Fourth Proportional to 39,721.86, 59,582.76 and 10,139.70

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Solution

The fourth proportional to 39,721.86, 59,582.76 and 10,139.70 is: 15,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.86 : 59,582.76 = 10,139.70 : x
  2. Step 2: Convert to fraction form
    39,721.86/59,582.76 = 10,139.70/x
  3. Step 3: Cross multiply
    39,721.86x = 59,582.76 × 10,139.70
  4. Step 4: Simplify right side
    39,721.86x = 604,151,311.57
  5. Step 5: Solve for x
    x = 604,151,311.57/39,721.86
  6. Step 6: Final answer
    x = 15,209.54

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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.