Home / 21,317.44-29,417.12-14,242.88

Finding the Fourth Proportional to 21,317.44, 29,417.12 and 14,242.88

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Solution

The fourth proportional to 21,317.44, 29,417.12 and 14,242.88 is: 19,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.44 : 29,417.12 = 14,242.88 : x
  2. Step 2: Convert to fraction form
    21,317.44/29,417.12 = 14,242.88/x
  3. Step 3: Cross multiply
    21,317.44x = 29,417.12 × 14,242.88
  4. Step 4: Simplify right side
    21,317.44x = 418,984,510.11
  5. Step 5: Solve for x
    x = 418,984,510.11/21,317.44
  6. Step 6: Final answer
    x = 19,654.54

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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.