Home / 20,888.98-31,336.40-6,098.99

Finding the Fourth Proportional to 20,888.98, 31,336.40 and 6,098.99

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Solution

The fourth proportional to 20,888.98, 31,336.40 and 6,098.99 is: 9,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.98 : 31,336.40 = 6,098.99 : x
  2. Step 2: Convert to fraction form
    20,888.98/31,336.40 = 6,098.99/x
  3. Step 3: Cross multiply
    20,888.98x = 31,336.40 × 6,098.99
  4. Step 4: Simplify right side
    20,888.98x = 191,120,248.80
  5. Step 5: Solve for x
    x = 191,120,248.80/20,888.98
  6. Step 6: Final answer
    x = 9,149.33

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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.