Home / 31,686.12-47,529.18-10,908.04

Finding the Fourth Proportional to 31,686.12, 47,529.18 and 10,908.04

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Solution

The fourth proportional to 31,686.12, 47,529.18 and 10,908.04 is: 16,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686.12 : 47,529.18 = 10,908.04 : x
  2. Step 2: Convert to fraction form
    31,686.12/47,529.18 = 10,908.04/x
  3. Step 3: Cross multiply
    31,686.12x = 47,529.18 × 10,908.04
  4. Step 4: Simplify right side
    31,686.12x = 518,450,196.61
  5. Step 5: Solve for x
    x = 518,450,196.61/31,686.12
  6. Step 6: Final answer
    x = 16,362.06

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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.