Home / 28,929.60-43,394.40-15,076.80

Finding the Fourth Proportional to 28,929.60, 43,394.40 and 15,076.80

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Solution

The fourth proportional to 28,929.60, 43,394.40 and 15,076.80 is: 22,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.60 : 43,394.40 = 15,076.80 : x
  2. Step 2: Convert to fraction form
    28,929.60/43,394.40 = 15,076.80/x
  3. Step 3: Cross multiply
    28,929.60x = 43,394.40 × 15,076.80
  4. Step 4: Simplify right side
    28,929.60x = 654,248,689.92
  5. Step 5: Solve for x
    x = 654,248,689.92/28,929.60
  6. Step 6: Final answer
    x = 22,615.20

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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.