Home / 28,713.74-39,622.12-17,956.54

Finding the Fourth Proportional to 28,713.74, 39,622.12 and 17,956.54

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Solution

The fourth proportional to 28,713.74, 39,622.12 and 17,956.54 is: 24,778.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.74 : 39,622.12 = 17,956.54 : x
  2. Step 2: Convert to fraction form
    28,713.74/39,622.12 = 17,956.54/x
  3. Step 3: Cross multiply
    28,713.74x = 39,622.12 × 17,956.54
  4. Step 4: Simplify right side
    28,713.74x = 711,476,038.72
  5. Step 5: Solve for x
    x = 711,476,038.72/28,713.74
  6. Step 6: Final answer
    x = 24,778.24

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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.