Home / 22,728.20-31,364.90-13,298.58

Finding the Fourth Proportional to 22,728.20, 31,364.90 and 13,298.58

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Solution

The fourth proportional to 22,728.20, 31,364.90 and 13,298.58 is: 18,352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,728.20 : 31,364.90 = 13,298.58 : x
  2. Step 2: Convert to fraction form
    22,728.20/31,364.90 = 13,298.58/x
  3. Step 3: Cross multiply
    22,728.20x = 31,364.90 × 13,298.58
  4. Step 4: Simplify right side
    22,728.20x = 417,108,565.35
  5. Step 5: Solve for x
    x = 417,108,565.35/22,728.20
  6. Step 6: Final answer
    x = 18,352.03

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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.