Home / 48,438.56-72,656.40-13,380.32

Finding the Fourth Proportional to 48,438.56, 72,656.40 and 13,380.32

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Solution

The fourth proportional to 48,438.56, 72,656.40 and 13,380.32 is: 20,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,438.56 : 72,656.40 = 13,380.32 : x
  2. Step 2: Convert to fraction form
    48,438.56/72,656.40 = 13,380.32/x
  3. Step 3: Cross multiply
    48,438.56x = 72,656.40 × 13,380.32
  4. Step 4: Simplify right side
    48,438.56x = 972,165,882.05
  5. Step 5: Solve for x
    x = 972,165,882.05/48,438.56
  6. Step 6: Final answer
    x = 20,070.08

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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.