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Finding the Fourth Proportional to 18,030.64, 24,879.82 and 10,071.88

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Solution

The fourth proportional to 18,030.64, 24,879.82 and 10,071.88 is: 13,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.64 : 24,879.82 = 10,071.88 : x
  2. Step 2: Convert to fraction form
    18,030.64/24,879.82 = 10,071.88/x
  3. Step 3: Cross multiply
    18,030.64x = 24,879.82 × 10,071.88
  4. Step 4: Simplify right side
    18,030.64x = 250,586,561.46
  5. Step 5: Solve for x
    x = 250,586,561.46/18,030.64
  6. Step 6: Final answer
    x = 13,897.82

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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.