Home / 31,969.12-47,960.16-12,248.32

Finding the Fourth Proportional to 31,969.12, 47,960.16 and 12,248.32

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Solution

The fourth proportional to 31,969.12, 47,960.16 and 12,248.32 is: 18,374.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,969.12 : 47,960.16 = 12,248.32 : x
  2. Step 2: Convert to fraction form
    31,969.12/47,960.16 = 12,248.32/x
  3. Step 3: Cross multiply
    31,969.12x = 47,960.16 × 12,248.32
  4. Step 4: Simplify right side
    31,969.12x = 587,431,386.93
  5. Step 5: Solve for x
    x = 587,431,386.93/31,969.12
  6. Step 6: Final answer
    x = 18,374.96

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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.