Home / 39,721.71-59,582.51-10,139.55

Finding the Fourth Proportional to 39,721.71, 59,582.51 and 10,139.55

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Solution

The fourth proportional to 39,721.71, 59,582.51 and 10,139.55 is: 15,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.71 : 59,582.51 = 10,139.55 : x
  2. Step 2: Convert to fraction form
    39,721.71/59,582.51 = 10,139.55/x
  3. Step 3: Cross multiply
    39,721.71x = 59,582.51 × 10,139.55
  4. Step 4: Simplify right side
    39,721.71x = 604,139,864.62
  5. Step 5: Solve for x
    x = 604,139,864.62/39,721.71
  6. Step 6: Final answer
    x = 15,209.31

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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.