Home / 19,643.28-27,111.24-12,569.46

Finding the Fourth Proportional to 19,643.28, 27,111.24 and 12,569.46

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Solution

The fourth proportional to 19,643.28, 27,111.24 and 12,569.46 is: 17,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.28 : 27,111.24 = 12,569.46 : x
  2. Step 2: Convert to fraction form
    19,643.28/27,111.24 = 12,569.46/x
  3. Step 3: Cross multiply
    19,643.28x = 27,111.24 × 12,569.46
  4. Step 4: Simplify right side
    19,643.28x = 340,773,646.73
  5. Step 5: Solve for x
    x = 340,773,646.73/19,643.28
  6. Step 6: Final answer
    x = 17,348.10

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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.