Home / 23,688.92-32,690.10-15,612.68

Finding the Fourth Proportional to 23,688.92, 32,690.10 and 15,612.68

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Solution

The fourth proportional to 23,688.92, 32,690.10 and 15,612.68 is: 21,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,688.92 : 32,690.10 = 15,612.68 : x
  2. Step 2: Convert to fraction form
    23,688.92/32,690.10 = 15,612.68/x
  3. Step 3: Cross multiply
    23,688.92x = 32,690.10 × 15,612.68
  4. Step 4: Simplify right side
    23,688.92x = 510,380,070.47
  5. Step 5: Solve for x
    x = 510,380,070.47/23,688.92
  6. Step 6: Final answer
    x = 21,545.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.