Home / 28,657.08-42,979.19-12,035.88

Finding the Fourth Proportional to 28,657.08, 42,979.19 and 12,035.88

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Solution

The fourth proportional to 28,657.08, 42,979.19 and 12,035.88 is: 18,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,657.08 : 42,979.19 = 12,035.88 : x
  2. Step 2: Convert to fraction form
    28,657.08/42,979.19 = 12,035.88/x
  3. Step 3: Cross multiply
    28,657.08x = 42,979.19 × 12,035.88
  4. Step 4: Simplify right side
    28,657.08x = 517,292,313.16
  5. Step 5: Solve for x
    x = 517,292,313.16/28,657.08
  6. Step 6: Final answer
    x = 18,051.12

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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.