Home / 25,011.79-34,480.38-15,445.28

Finding the Fourth Proportional to 25,011.79, 34,480.38 and 15,445.28

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Solution

The fourth proportional to 25,011.79, 34,480.38 and 15,445.28 is: 21,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,011.79 : 34,480.38 = 15,445.28 : x
  2. Step 2: Convert to fraction form
    25,011.79/34,480.38 = 15,445.28/x
  3. Step 3: Cross multiply
    25,011.79x = 34,480.38 × 15,445.28
  4. Step 4: Simplify right side
    25,011.79x = 532,559,267.73
  5. Step 5: Solve for x
    x = 532,559,267.73/25,011.79
  6. Step 6: Final answer
    x = 21,292.33

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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.