Home / 22,905.55-31,604.13-15,349.13

Finding the Fourth Proportional to 22,905.55, 31,604.13 and 15,349.13

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Solution

The fourth proportional to 22,905.55, 31,604.13 and 15,349.13 is: 21,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.55 : 31,604.13 = 15,349.13 : x
  2. Step 2: Convert to fraction form
    22,905.55/31,604.13 = 15,349.13/x
  3. Step 3: Cross multiply
    22,905.55x = 31,604.13 × 15,349.13
  4. Step 4: Simplify right side
    22,905.55x = 485,095,899.91
  5. Step 5: Solve for x
    x = 485,095,899.91/22,905.55
  6. Step 6: Final answer
    x = 21,178.09

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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.