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Finding the Fourth Proportional to 22,703.55, 31,330.11 and 12,493.63

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Solution

The fourth proportional to 22,703.55, 31,330.11 and 12,493.63 is: 17,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.55 : 31,330.11 = 12,493.63 : x
  2. Step 2: Convert to fraction form
    22,703.55/31,330.11 = 12,493.63/x
  3. Step 3: Cross multiply
    22,703.55x = 31,330.11 × 12,493.63
  4. Step 4: Simplify right side
    22,703.55x = 391,426,888.21
  5. Step 5: Solve for x
    x = 391,426,888.21/22,703.55
  6. Step 6: Final answer
    x = 17,240.78

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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.