Home / 31,838.33-47,778.21-12,117.06

Finding the Fourth Proportional to 31,838.33, 47,778.21 and 12,117.06

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Solution

The fourth proportional to 31,838.33, 47,778.21 and 12,117.06 is: 18,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,838.33 : 47,778.21 = 12,117.06 : x
  2. Step 2: Convert to fraction form
    31,838.33/47,778.21 = 12,117.06/x
  3. Step 3: Cross multiply
    31,838.33x = 47,778.21 × 12,117.06
  4. Step 4: Simplify right side
    31,838.33x = 578,931,437.26
  5. Step 5: Solve for x
    x = 578,931,437.26/31,838.33
  6. Step 6: Final answer
    x = 18,183.48

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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.