Home / 21,270.42-29,393.65-15,956.01

Finding the Fourth Proportional to 21,270.42, 29,393.65 and 15,956.01

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Solution

The fourth proportional to 21,270.42, 29,393.65 and 15,956.01 is: 22,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270.42 : 29,393.65 = 15,956.01 : x
  2. Step 2: Convert to fraction form
    21,270.42/29,393.65 = 15,956.01/x
  3. Step 3: Cross multiply
    21,270.42x = 29,393.65 × 15,956.01
  4. Step 4: Simplify right side
    21,270.42x = 469,005,373.34
  5. Step 5: Solve for x
    x = 469,005,373.34/21,270.42
  6. Step 6: Final answer
    x = 22,049.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.