Home / 15,781.80-23,671.77-5,920.25

Finding the Fourth Proportional to 15,781.80, 23,671.77 and 5,920.25

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Solution

The fourth proportional to 15,781.80, 23,671.77 and 5,920.25 is: 8,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.80 : 23,671.77 = 5,920.25 : x
  2. Step 2: Convert to fraction form
    15,781.80/23,671.77 = 5,920.25/x
  3. Step 3: Cross multiply
    15,781.80x = 23,671.77 × 5,920.25
  4. Step 4: Simplify right side
    15,781.80x = 140,142,744.55
  5. Step 5: Solve for x
    x = 140,142,744.55/15,781.80
  6. Step 6: Final answer
    x = 8,880.02

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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.