Home / 34,739.20-52,135.68-13,980.16

Finding the Fourth Proportional to 34,739.20, 52,135.68 and 13,980.16

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Solution

The fourth proportional to 34,739.20, 52,135.68 and 13,980.16 is: 20,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,739.20 : 52,135.68 = 13,980.16 : x
  2. Step 2: Convert to fraction form
    34,739.20/52,135.68 = 13,980.16/x
  3. Step 3: Cross multiply
    34,739.20x = 52,135.68 × 13,980.16
  4. Step 4: Simplify right side
    34,739.20x = 728,865,148.11
  5. Step 5: Solve for x
    x = 728,865,148.11/34,739.20
  6. Step 6: Final answer
    x = 20,981.06

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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.