Home / 31,999.04-47,988.13-15,130.38

Finding the Fourth Proportional to 31,999.04, 47,988.13 and 15,130.38

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Solution

The fourth proportional to 31,999.04, 47,988.13 and 15,130.38 is: 22,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,999.04 : 47,988.13 = 15,130.38 : x
  2. Step 2: Convert to fraction form
    31,999.04/47,988.13 = 15,130.38/x
  3. Step 3: Cross multiply
    31,999.04x = 47,988.13 × 15,130.38
  4. Step 4: Simplify right side
    31,999.04x = 726,078,642.39
  5. Step 5: Solve for x
    x = 726,078,642.39/31,999.04
  6. Step 6: Final answer
    x = 22,690.64

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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.