Home / 31,342.44-47,001.81-12,616.11

Finding the Fourth Proportional to 31,342.44, 47,001.81 and 12,616.11

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Solution

The fourth proportional to 31,342.44, 47,001.81 and 12,616.11 is: 18,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,342.44 : 47,001.81 = 12,616.11 : x
  2. Step 2: Convert to fraction form
    31,342.44/47,001.81 = 12,616.11/x
  3. Step 3: Cross multiply
    31,342.44x = 47,001.81 × 12,616.11
  4. Step 4: Simplify right side
    31,342.44x = 592,980,005.16
  5. Step 5: Solve for x
    x = 592,980,005.16/31,342.44
  6. Step 6: Final answer
    x = 18,919.40

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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.