Home / 15,327.64-21,134.08-14,381.76

Finding the Fourth Proportional to 15,327.64, 21,134.08 and 14,381.76

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Solution

The fourth proportional to 15,327.64, 21,134.08 and 14,381.76 is: 19,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.64 : 21,134.08 = 14,381.76 : x
  2. Step 2: Convert to fraction form
    15,327.64/21,134.08 = 14,381.76/x
  3. Step 3: Cross multiply
    15,327.64x = 21,134.08 × 14,381.76
  4. Step 4: Simplify right side
    15,327.64x = 303,945,266.38
  5. Step 5: Solve for x
    x = 303,945,266.38/15,327.64
  6. Step 6: Final answer
    x = 19,829.88

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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.