Home / 48,281.60-72,422.40-20,633.60

Finding the Fourth Proportional to 48,281.60, 72,422.40 and 20,633.60

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Solution

The fourth proportional to 48,281.60, 72,422.40 and 20,633.60 is: 30,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,281.60 : 72,422.40 = 20,633.60 : x
  2. Step 2: Convert to fraction form
    48,281.60/72,422.40 = 20,633.60/x
  3. Step 3: Cross multiply
    48,281.60x = 72,422.40 × 20,633.60
  4. Step 4: Simplify right side
    48,281.60x = 1,494,334,832.64
  5. Step 5: Solve for x
    x = 1,494,334,832.64/48,281.60
  6. Step 6: Final answer
    x = 30,950.40

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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.