Home / 31,621.17-47,424.47-11,901.72

Finding the Fourth Proportional to 31,621.17, 47,424.47 and 11,901.72

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Solution

The fourth proportional to 31,621.17, 47,424.47 and 11,901.72 is: 17,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.17 : 47,424.47 = 11,901.72 : x
  2. Step 2: Convert to fraction form
    31,621.17/47,424.47 = 11,901.72/x
  3. Step 3: Cross multiply
    31,621.17x = 47,424.47 × 11,901.72
  4. Step 4: Simplify right side
    31,621.17x = 564,432,763.09
  5. Step 5: Solve for x
    x = 564,432,763.09/31,621.17
  6. Step 6: Final answer
    x = 17,849.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.