Home / 28,456.83-42,689.84-10,688.87

Finding the Fourth Proportional to 28,456.83, 42,689.84 and 10,688.87

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Solution

The fourth proportional to 28,456.83, 42,689.84 and 10,688.87 is: 16,035.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.83 : 42,689.84 = 10,688.87 : x
  2. Step 2: Convert to fraction form
    28,456.83/42,689.84 = 10,688.87/x
  3. Step 3: Cross multiply
    28,456.83x = 42,689.84 × 10,688.87
  4. Step 4: Simplify right side
    28,456.83x = 456,305,883.19
  5. Step 5: Solve for x
    x = 456,305,883.19/28,456.83
  6. Step 6: Final answer
    x = 16,035.02

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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.