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Finding the Fourth Proportional to 15,342.30, 22,981.05 and 12,750.30

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Solution

The fourth proportional to 15,342.30, 22,981.05 and 12,750.30 is: 19,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.30 : 22,981.05 = 12,750.30 : x
  2. Step 2: Convert to fraction form
    15,342.30/22,981.05 = 12,750.30/x
  3. Step 3: Cross multiply
    15,342.30x = 22,981.05 × 12,750.30
  4. Step 4: Simplify right side
    15,342.30x = 293,015,281.82
  5. Step 5: Solve for x
    x = 293,015,281.82/15,342.30
  6. Step 6: Final answer
    x = 19,098.52

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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.