Home / 19,655.31-27,124.16-10,702.80

Finding the Fourth Proportional to 19,655.31, 27,124.16 and 10,702.80

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Solution

The fourth proportional to 19,655.31, 27,124.16 and 10,702.80 is: 14,769.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.31 : 27,124.16 = 10,702.80 : x
  2. Step 2: Convert to fraction form
    19,655.31/27,124.16 = 10,702.80/x
  3. Step 3: Cross multiply
    19,655.31x = 27,124.16 × 10,702.80
  4. Step 4: Simplify right side
    19,655.31x = 290,304,406.13
  5. Step 5: Solve for x
    x = 290,304,406.13/19,655.31
  6. Step 6: Final answer
    x = 14,769.77

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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.