Home / 31,537.36-47,309.70-10,479.28

Finding the Fourth Proportional to 31,537.36, 47,309.70 and 10,479.28

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Solution

The fourth proportional to 31,537.36, 47,309.70 and 10,479.28 is: 15,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,537.36 : 47,309.70 = 10,479.28 : x
  2. Step 2: Convert to fraction form
    31,537.36/47,309.70 = 10,479.28/x
  3. Step 3: Cross multiply
    31,537.36x = 47,309.70 × 10,479.28
  4. Step 4: Simplify right side
    31,537.36x = 495,771,593.02
  5. Step 5: Solve for x
    x = 495,771,593.02/31,537.36
  6. Step 6: Final answer
    x = 15,720.14

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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.