Home / 28,095.66-42,158.07-20,368.26

Finding the Fourth Proportional to 28,095.66, 42,158.07 and 20,368.26

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Solution

The fourth proportional to 28,095.66, 42,158.07 and 20,368.26 is: 30,562.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.66 : 42,158.07 = 20,368.26 : x
  2. Step 2: Convert to fraction form
    28,095.66/42,158.07 = 20,368.26/x
  3. Step 3: Cross multiply
    28,095.66x = 42,158.07 × 20,368.26
  4. Step 4: Simplify right side
    28,095.66x = 858,686,530.86
  5. Step 5: Solve for x
    x = 858,686,530.86/28,095.66
  6. Step 6: Final answer
    x = 30,562.96

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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.