Home / 20,562.49-30,856.07-8,875.70

Finding the Fourth Proportional to 20,562.49, 30,856.07 and 8,875.70

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Solution

The fourth proportional to 20,562.49, 30,856.07 and 8,875.70 is: 13,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.49 : 30,856.07 = 8,875.70 : x
  2. Step 2: Convert to fraction form
    20,562.49/30,856.07 = 8,875.70/x
  3. Step 3: Cross multiply
    20,562.49x = 30,856.07 × 8,875.70
  4. Step 4: Simplify right side
    20,562.49x = 273,869,088.41
  5. Step 5: Solve for x
    x = 273,869,088.41/20,562.49
  6. Step 6: Final answer
    x = 13,318.87

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1.5x scale

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.