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Finding the Fourth Proportional to 23,411.90, 35,117.85 and 8,621.30

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Solution

The fourth proportional to 23,411.90, 35,117.85 and 8,621.30 is: 12,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,411.90 : 35,117.85 = 8,621.30 : x
  2. Step 2: Convert to fraction form
    23,411.90/35,117.85 = 8,621.30/x
  3. Step 3: Cross multiply
    23,411.90x = 35,117.85 × 8,621.30
  4. Step 4: Simplify right side
    23,411.90x = 302,761,520.21
  5. Step 5: Solve for x
    x = 302,761,520.21/23,411.90
  6. Step 6: Final answer
    x = 12,931.95

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Similar ratio
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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.