Home / 31,613.64-47,417.28-8,240.04

Finding the Fourth Proportional to 31,613.64, 47,417.28 and 8,240.04

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Solution

The fourth proportional to 31,613.64, 47,417.28 and 8,240.04 is: 12,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.64 : 47,417.28 = 8,240.04 : x
  2. Step 2: Convert to fraction form
    31,613.64/47,417.28 = 8,240.04/x
  3. Step 3: Cross multiply
    31,613.64x = 47,417.28 × 8,240.04
  4. Step 4: Simplify right side
    31,613.64x = 390,720,283.89
  5. Step 5: Solve for x
    x = 390,720,283.89/31,613.64
  6. Step 6: Final answer
    x = 12,359.23

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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.