Home / 21,485.91-32,278.28-15,261.06

Finding the Fourth Proportional to 21,485.91, 32,278.28 and 15,261.06

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Solution

The fourth proportional to 21,485.91, 32,278.28 and 15,261.06 is: 22,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.91 : 32,278.28 = 15,261.06 : x
  2. Step 2: Convert to fraction form
    21,485.91/32,278.28 = 15,261.06/x
  3. Step 3: Cross multiply
    21,485.91x = 32,278.28 × 15,261.06
  4. Step 4: Simplify right side
    21,485.91x = 492,600,691.47
  5. Step 5: Solve for x
    x = 492,600,691.47/21,485.91
  6. Step 6: Final answer
    x = 22,926.69

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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.