Home / 15,880.60-23,820.90-13,307.80

Finding the Fourth Proportional to 15,880.60, 23,820.90 and 13,307.80

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Solution

The fourth proportional to 15,880.60, 23,820.90 and 13,307.80 is: 19,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.60 : 23,820.90 = 13,307.80 : x
  2. Step 2: Convert to fraction form
    15,880.60/23,820.90 = 13,307.80/x
  3. Step 3: Cross multiply
    15,880.60x = 23,820.90 × 13,307.80
  4. Step 4: Simplify right side
    15,880.60x = 317,003,773.02
  5. Step 5: Solve for x
    x = 317,003,773.02/15,880.60
  6. Step 6: Final answer
    x = 19,961.70

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Similar ratio
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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.