Home / 28,400.40-42,649.20-27,525.60

Finding the Fourth Proportional to 28,400.40, 42,649.20 and 27,525.60

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Solution

The fourth proportional to 28,400.40, 42,649.20 and 27,525.60 is: 41,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.40 : 42,649.20 = 27,525.60 : x
  2. Step 2: Convert to fraction form
    28,400.40/42,649.20 = 27,525.60/x
  3. Step 3: Cross multiply
    28,400.40x = 42,649.20 × 27,525.60
  4. Step 4: Simplify right side
    28,400.40x = 1,173,944,819.52
  5. Step 5: Solve for x
    x = 1,173,944,819.52/28,400.40
  6. Step 6: Final answer
    x = 41,335.50

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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.