Home / 25,631.64-35,363.79-15,013.76

Finding the Fourth Proportional to 25,631.64, 35,363.79 and 15,013.76

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Solution

The fourth proportional to 25,631.64, 35,363.79 and 15,013.76 is: 20,714.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.64 : 35,363.79 = 15,013.76 : x
  2. Step 2: Convert to fraction form
    25,631.64/35,363.79 = 15,013.76/x
  3. Step 3: Cross multiply
    25,631.64x = 35,363.79 × 15,013.76
  4. Step 4: Simplify right side
    25,631.64x = 530,943,278.93
  5. Step 5: Solve for x
    x = 530,943,278.93/25,631.64
  6. Step 6: Final answer
    x = 20,714.37

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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.