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Finding the Fourth Proportional to 25,290.30, 34,900.00 and 13,959.82

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Solution

The fourth proportional to 25,290.30, 34,900.00 and 13,959.82 is: 19,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,290.30 : 34,900.00 = 13,959.82 : x
  2. Step 2: Convert to fraction form
    25,290.30/34,900.00 = 13,959.82/x
  3. Step 3: Cross multiply
    25,290.30x = 34,900.00 × 13,959.82
  4. Step 4: Simplify right side
    25,290.30x = 487,197,687.46
  5. Step 5: Solve for x
    x = 487,197,687.46/25,290.30
  6. Step 6: Final answer
    x = 19,264.21

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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.