Home / 25,042.40-34,543.20-19,656.76

Finding the Fourth Proportional to 25,042.40, 34,543.20 and 19,656.76

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Solution

The fourth proportional to 25,042.40, 34,543.20 and 19,656.76 is: 27,114.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,042.40 : 34,543.20 = 19,656.76 : x
  2. Step 2: Convert to fraction form
    25,042.40/34,543.20 = 19,656.76/x
  3. Step 3: Cross multiply
    25,042.40x = 34,543.20 × 19,656.76
  4. Step 4: Simplify right side
    25,042.40x = 679,007,392.03
  5. Step 5: Solve for x
    x = 679,007,392.03/25,042.40
  6. Step 6: Final answer
    x = 27,114.31

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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.