Home / 21,901.20-32,856.60-8,750.16

Finding the Fourth Proportional to 21,901.20, 32,856.60 and 8,750.16

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Solution

The fourth proportional to 21,901.20, 32,856.60 and 8,750.16 is: 13,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.20 : 32,856.60 = 8,750.16 : x
  2. Step 2: Convert to fraction form
    21,901.20/32,856.60 = 8,750.16/x
  3. Step 3: Cross multiply
    21,901.20x = 32,856.60 × 8,750.16
  4. Step 4: Simplify right side
    21,901.20x = 287,500,507.06
  5. Step 5: Solve for x
    x = 287,500,507.06/21,901.20
  6. Step 6: Final answer
    x = 13,127.16

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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.