Home / 31,613.04-47,428.20-10,838.16

Finding the Fourth Proportional to 31,613.04, 47,428.20 and 10,838.16

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Solution

The fourth proportional to 31,613.04, 47,428.20 and 10,838.16 is: 16,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.04 : 47,428.20 = 10,838.16 : x
  2. Step 2: Convert to fraction form
    31,613.04/47,428.20 = 10,838.16/x
  3. Step 3: Cross multiply
    31,613.04x = 47,428.20 × 10,838.16
  4. Step 4: Simplify right side
    31,613.04x = 514,034,420.11
  5. Step 5: Solve for x
    x = 514,034,420.11/31,613.04
  6. Step 6: Final answer
    x = 16,260.20

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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.