Home / 34,385.60-51,631.20-18,833.60

Finding the Fourth Proportional to 34,385.60, 51,631.20 and 18,833.60

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Solution

The fourth proportional to 34,385.60, 51,631.20 and 18,833.60 is: 28,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,385.60 : 51,631.20 = 18,833.60 : x
  2. Step 2: Convert to fraction form
    34,385.60/51,631.20 = 18,833.60/x
  3. Step 3: Cross multiply
    34,385.60x = 51,631.20 × 18,833.60
  4. Step 4: Simplify right side
    34,385.60x = 972,401,368.32
  5. Step 5: Solve for x
    x = 972,401,368.32/34,385.60
  6. Step 6: Final answer
    x = 28,279.32

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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.