Home / 19,641.47-27,104.85-10,689.17

Finding the Fourth Proportional to 19,641.47, 27,104.85 and 10,689.17

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Solution

The fourth proportional to 19,641.47, 27,104.85 and 10,689.17 is: 14,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.47 : 27,104.85 = 10,689.17 : x
  2. Step 2: Convert to fraction form
    19,641.47/27,104.85 = 10,689.17/x
  3. Step 3: Cross multiply
    19,641.47x = 27,104.85 × 10,689.17
  4. Step 4: Simplify right side
    19,641.47x = 289,728,349.47
  5. Step 5: Solve for x
    x = 289,728,349.47/19,641.47
  6. Step 6: Final answer
    x = 14,750.85

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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.