Home / 31,802.85-47,702.75-12,079.87

Finding the Fourth Proportional to 31,802.85, 47,702.75 and 12,079.87

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Solution

The fourth proportional to 31,802.85, 47,702.75 and 12,079.87 is: 18,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,802.85 : 47,702.75 = 12,079.87 : x
  2. Step 2: Convert to fraction form
    31,802.85/47,702.75 = 12,079.87/x
  3. Step 3: Cross multiply
    31,802.85x = 47,702.75 × 12,079.87
  4. Step 4: Simplify right side
    31,802.85x = 576,242,838.99
  5. Step 5: Solve for x
    x = 576,242,838.99/31,802.85
  6. Step 6: Final answer
    x = 18,119.22

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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.