Home / 20,562.74-30,856.45-8,875.95

Finding the Fourth Proportional to 20,562.74, 30,856.45 and 8,875.95

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Solution

The fourth proportional to 20,562.74, 30,856.45 and 8,875.95 is: 13,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.74 : 30,856.45 = 8,875.95 : x
  2. Step 2: Convert to fraction form
    20,562.74/30,856.45 = 8,875.95/x
  3. Step 3: Cross multiply
    20,562.74x = 30,856.45 × 8,875.95
  4. Step 4: Simplify right side
    20,562.74x = 273,880,307.38
  5. Step 5: Solve for x
    x = 273,880,307.38/20,562.74
  6. Step 6: Final answer
    x = 13,319.25

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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.