Home / 21,050.52-31,545.72-15,460.02

Finding the Fourth Proportional to 21,050.52, 31,545.72 and 15,460.02

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Solution

The fourth proportional to 21,050.52, 31,545.72 and 15,460.02 is: 23,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.52 : 31,545.72 = 15,460.02 : x
  2. Step 2: Convert to fraction form
    21,050.52/31,545.72 = 15,460.02/x
  3. Step 3: Cross multiply
    21,050.52x = 31,545.72 × 15,460.02
  4. Step 4: Simplify right side
    21,050.52x = 487,697,462.11
  5. Step 5: Solve for x
    x = 487,697,462.11/21,050.52
  6. Step 6: Final answer
    x = 23,167.95

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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.