Home / 23,898.08-32,980.19-13,143.78

Finding the Fourth Proportional to 23,898.08, 32,980.19 and 13,143.78

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Solution

The fourth proportional to 23,898.08, 32,980.19 and 13,143.78 is: 18,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,898.08 : 32,980.19 = 13,143.78 : x
  2. Step 2: Convert to fraction form
    23,898.08/32,980.19 = 13,143.78/x
  3. Step 3: Cross multiply
    23,898.08x = 32,980.19 × 13,143.78
  4. Step 4: Simplify right side
    23,898.08x = 433,484,369.93
  5. Step 5: Solve for x
    x = 433,484,369.93/23,898.08
  6. Step 6: Final answer
    x = 18,138.88

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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.