Home / 39,721.96-59,582.89-10,139.80

Finding the Fourth Proportional to 39,721.96, 59,582.89 and 10,139.80

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Solution

The fourth proportional to 39,721.96, 59,582.89 and 10,139.80 is: 15,209.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.96 : 59,582.89 = 10,139.80 : x
  2. Step 2: Convert to fraction form
    39,721.96/59,582.89 = 10,139.80/x
  3. Step 3: Cross multiply
    39,721.96x = 59,582.89 × 10,139.80
  4. Step 4: Simplify right side
    39,721.96x = 604,158,588.02
  5. Step 5: Solve for x
    x = 604,158,588.02/39,721.96
  6. Step 6: Final answer
    x = 15,209.69

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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.