Home / 48,405.24-72,612.34-18,825.30

Finding the Fourth Proportional to 48,405.24, 72,612.34 and 18,825.30

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Solution

The fourth proportional to 48,405.24, 72,612.34 and 18,825.30 is: 28,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,405.24 : 72,612.34 = 18,825.30 : x
  2. Step 2: Convert to fraction form
    48,405.24/72,612.34 = 18,825.30/x
  3. Step 3: Cross multiply
    48,405.24x = 72,612.34 × 18,825.30
  4. Step 4: Simplify right side
    48,405.24x = 1,366,949,084.20
  5. Step 5: Solve for x
    x = 1,366,949,084.20/48,405.24
  6. Step 6: Final answer
    x = 28,239.69

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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.