Home / 25,620.71-35,360.15-15,013.76

Finding the Fourth Proportional to 25,620.71, 35,360.15 and 15,013.76

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Solution

The fourth proportional to 25,620.71, 35,360.15 and 15,013.76 is: 20,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,620.71 : 35,360.15 = 15,013.76 : x
  2. Step 2: Convert to fraction form
    25,620.71/35,360.15 = 15,013.76/x
  3. Step 3: Cross multiply
    25,620.71x = 35,360.15 × 15,013.76
  4. Step 4: Simplify right side
    25,620.71x = 530,888,553.79
  5. Step 5: Solve for x
    x = 530,888,553.79/25,620.71
  6. Step 6: Final answer
    x = 20,721.08

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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.