Home / 28,019.04-42,015.60-12,441.12

Finding the Fourth Proportional to 28,019.04, 42,015.60 and 12,441.12

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Solution

The fourth proportional to 28,019.04, 42,015.60 and 12,441.12 is: 18,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.04 : 42,015.60 = 12,441.12 : x
  2. Step 2: Convert to fraction form
    28,019.04/42,015.60 = 12,441.12/x
  3. Step 3: Cross multiply
    28,019.04x = 42,015.60 × 12,441.12
  4. Step 4: Simplify right side
    28,019.04x = 522,721,121.47
  5. Step 5: Solve for x
    x = 522,721,121.47/28,019.04
  6. Step 6: Final answer
    x = 18,655.93

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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.