Home / 20,154.90-30,237.15-8,462.10

Finding the Fourth Proportional to 20,154.90, 30,237.15 and 8,462.10

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Solution

The fourth proportional to 20,154.90, 30,237.15 and 8,462.10 is: 12,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.90 : 30,237.15 = 8,462.10 : x
  2. Step 2: Convert to fraction form
    20,154.90/30,237.15 = 8,462.10/x
  3. Step 3: Cross multiply
    20,154.90x = 30,237.15 × 8,462.10
  4. Step 4: Simplify right side
    20,154.90x = 255,869,787.02
  5. Step 5: Solve for x
    x = 255,869,787.02/20,154.90
  6. Step 6: Final answer
    x = 12,695.17

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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.