Home / 19,687.52-27,165.12-14,386.88

Finding the Fourth Proportional to 19,687.52, 27,165.12 and 14,386.88

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Solution

The fourth proportional to 19,687.52, 27,165.12 and 14,386.88 is: 19,851.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.52 : 27,165.12 = 14,386.88 : x
  2. Step 2: Convert to fraction form
    19,687.52/27,165.12 = 14,386.88/x
  3. Step 3: Cross multiply
    19,687.52x = 27,165.12 × 14,386.88
  4. Step 4: Simplify right side
    19,687.52x = 390,821,321.63
  5. Step 5: Solve for x
    x = 390,821,321.63/19,687.52
  6. Step 6: Final answer
    x = 19,851.22

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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.