Home / 15,820.60-23,730.90-13,772.60

Finding the Fourth Proportional to 15,820.60, 23,730.90 and 13,772.60

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Solution

The fourth proportional to 15,820.60, 23,730.90 and 13,772.60 is: 20,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.60 : 23,730.90 = 13,772.60 : x
  2. Step 2: Convert to fraction form
    15,820.60/23,730.90 = 13,772.60/x
  3. Step 3: Cross multiply
    15,820.60x = 23,730.90 × 13,772.60
  4. Step 4: Simplify right side
    15,820.60x = 326,836,193.34
  5. Step 5: Solve for x
    x = 326,836,193.34/15,820.60
  6. Step 6: Final answer
    x = 20,658.90

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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.