Home / 28,579.66-42,897.10-13,798.96

Finding the Fourth Proportional to 28,579.66, 42,897.10 and 13,798.96

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Solution

The fourth proportional to 28,579.66, 42,897.10 and 13,798.96 is: 20,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.66 : 42,897.10 = 13,798.96 : x
  2. Step 2: Convert to fraction form
    28,579.66/42,897.10 = 13,798.96/x
  3. Step 3: Cross multiply
    28,579.66x = 42,897.10 × 13,798.96
  4. Step 4: Simplify right side
    28,579.66x = 591,935,367.02
  5. Step 5: Solve for x
    x = 591,935,367.02/28,579.66
  6. Step 6: Final answer
    x = 20,711.77

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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.