Home / 22,332.18-30,818.70-12,900.54

Finding the Fourth Proportional to 22,332.18, 30,818.70 and 12,900.54

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Solution

The fourth proportional to 22,332.18, 30,818.70 and 12,900.54 is: 17,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,332.18 : 30,818.70 = 12,900.54 : x
  2. Step 2: Convert to fraction form
    22,332.18/30,818.70 = 12,900.54/x
  3. Step 3: Cross multiply
    22,332.18x = 30,818.70 × 12,900.54
  4. Step 4: Simplify right side
    22,332.18x = 397,577,872.10
  5. Step 5: Solve for x
    x = 397,577,872.10/22,332.18
  6. Step 6: Final answer
    x = 17,802.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.