Home / 22,700.91-31,330.16-13,748.79

Finding the Fourth Proportional to 22,700.91, 31,330.16 and 13,748.79

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Solution

The fourth proportional to 22,700.91, 31,330.16 and 13,748.79 is: 18,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.91 : 31,330.16 = 13,748.79 : x
  2. Step 2: Convert to fraction form
    22,700.91/31,330.16 = 13,748.79/x
  3. Step 3: Cross multiply
    22,700.91x = 31,330.16 × 13,748.79
  4. Step 4: Simplify right side
    22,700.91x = 430,751,721.76
  5. Step 5: Solve for x
    x = 430,751,721.76/22,700.91
  6. Step 6: Final answer
    x = 18,975.09

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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.