Home / 28,098.85-42,169.06-13,307.80

Finding the Fourth Proportional to 28,098.85, 42,169.06 and 13,307.80

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Solution

The fourth proportional to 28,098.85, 42,169.06 and 13,307.80 is: 19,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.85 : 42,169.06 = 13,307.80 : x
  2. Step 2: Convert to fraction form
    28,098.85/42,169.06 = 13,307.80/x
  3. Step 3: Cross multiply
    28,098.85x = 42,169.06 × 13,307.80
  4. Step 4: Simplify right side
    28,098.85x = 561,177,444.38
  5. Step 5: Solve for x
    x = 561,177,444.38/28,098.85
  6. Step 6: Final answer
    x = 19,971.55

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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.