Home / 22,630.12-31,228.64-12,558.98

Finding the Fourth Proportional to 22,630.12, 31,228.64 and 12,558.98

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Solution

The fourth proportional to 22,630.12, 31,228.64 and 12,558.98 is: 17,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,630.12 : 31,228.64 = 12,558.98 : x
  2. Step 2: Convert to fraction form
    22,630.12/31,228.64 = 12,558.98/x
  3. Step 3: Cross multiply
    22,630.12x = 31,228.64 × 12,558.98
  4. Step 4: Simplify right side
    22,630.12x = 392,199,927.56
  5. Step 5: Solve for x
    x = 392,199,927.56/22,630.12
  6. Step 6: Final answer
    x = 17,330.88

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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.