Home / 23,510.76-32,445.08-12,900.78

Finding the Fourth Proportional to 23,510.76, 32,445.08 and 12,900.78

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Solution

The fourth proportional to 23,510.76, 32,445.08 and 12,900.78 is: 17,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,510.76 : 32,445.08 = 12,900.78 : x
  2. Step 2: Convert to fraction form
    23,510.76/32,445.08 = 12,900.78/x
  3. Step 3: Cross multiply
    23,510.76x = 32,445.08 × 12,900.78
  4. Step 4: Simplify right side
    23,510.76x = 418,566,774.66
  5. Step 5: Solve for x
    x = 418,566,774.66/23,510.76
  6. Step 6: Final answer
    x = 17,803.20

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Half scale
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Double scale
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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.