Home / 28,145.04-42,238.32-13,353.92

Finding the Fourth Proportional to 28,145.04, 42,238.32 and 13,353.92

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Solution

The fourth proportional to 28,145.04, 42,238.32 and 13,353.92 is: 20,040.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.04 : 42,238.32 = 13,353.92 : x
  2. Step 2: Convert to fraction form
    28,145.04/42,238.32 = 13,353.92/x
  3. Step 3: Cross multiply
    28,145.04x = 42,238.32 × 13,353.92
  4. Step 4: Simplify right side
    28,145.04x = 564,047,146.21
  5. Step 5: Solve for x
    x = 564,047,146.21/28,145.04
  6. Step 6: Final answer
    x = 20,040.73

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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.