Home / 21,560.32-32,340.62-7,520.29

Finding the Fourth Proportional to 21,560.32, 32,340.62 and 7,520.29

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Solution

The fourth proportional to 21,560.32, 32,340.62 and 7,520.29 is: 11,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.32 : 32,340.62 = 7,520.29 : x
  2. Step 2: Convert to fraction form
    21,560.32/32,340.62 = 7,520.29/x
  3. Step 3: Cross multiply
    21,560.32x = 32,340.62 × 7,520.29
  4. Step 4: Simplify right side
    21,560.32x = 243,210,803.58
  5. Step 5: Solve for x
    x = 243,210,803.58/21,560.32
  6. Step 6: Final answer
    x = 11,280.48

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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.