Home / 48,008.30-72,012.45-20,306.30

Finding the Fourth Proportional to 48,008.30, 72,012.45 and 20,306.30

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Solution

The fourth proportional to 48,008.30, 72,012.45 and 20,306.30 is: 30,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,008.30 : 72,012.45 = 20,306.30 : x
  2. Step 2: Convert to fraction form
    48,008.30/72,012.45 = 20,306.30/x
  3. Step 3: Cross multiply
    48,008.30x = 72,012.45 × 20,306.30
  4. Step 4: Simplify right side
    48,008.30x = 1,462,306,413.44
  5. Step 5: Solve for x
    x = 1,462,306,413.44/48,008.30
  6. Step 6: Final answer
    x = 30,459.45

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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.