Home / 21,612.64-32,357.28-15,694.72

Finding the Fourth Proportional to 21,612.64, 32,357.28 and 15,694.72

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Solution

The fourth proportional to 21,612.64, 32,357.28 and 15,694.72 is: 23,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,612.64 : 32,357.28 = 15,694.72 : x
  2. Step 2: Convert to fraction form
    21,612.64/32,357.28 = 15,694.72/x
  3. Step 3: Cross multiply
    21,612.64x = 32,357.28 × 15,694.72
  4. Step 4: Simplify right side
    21,612.64x = 507,838,449.56
  5. Step 5: Solve for x
    x = 507,838,449.56/21,612.64
  6. Step 6: Final answer
    x = 23,497.29

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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.