Home / 38,401.20-53,008.80-37,155.60

Finding the Fourth Proportional to 38,401.20, 53,008.80 and 37,155.60

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Solution

The fourth proportional to 38,401.20, 53,008.80 and 37,155.60 is: 51,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,401.20 : 53,008.80 = 37,155.60 : x
  2. Step 2: Convert to fraction form
    38,401.20/53,008.80 = 37,155.60/x
  3. Step 3: Cross multiply
    38,401.20x = 53,008.80 × 37,155.60
  4. Step 4: Simplify right side
    38,401.20x = 1,969,573,769.28
  5. Step 5: Solve for x
    x = 1,969,573,769.28/38,401.20
  6. Step 6: Final answer
    x = 51,289.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.