Home / 20,888.72-31,336.02-6,098.74

Finding the Fourth Proportional to 20,888.72, 31,336.02 and 6,098.74

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Solution

The fourth proportional to 20,888.72, 31,336.02 and 6,098.74 is: 9,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.72 : 31,336.02 = 6,098.74 : x
  2. Step 2: Convert to fraction form
    20,888.72/31,336.02 = 6,098.74/x
  3. Step 3: Cross multiply
    20,888.72x = 31,336.02 × 6,098.74
  4. Step 4: Simplify right side
    20,888.72x = 191,110,238.61
  5. Step 5: Solve for x
    x = 191,110,238.61/20,888.72
  6. Step 6: Final answer
    x = 9,148.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.