Home / 27,901.98-42,017.99-20,164.86

Finding the Fourth Proportional to 27,901.98, 42,017.99 and 20,164.86

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Solution

The fourth proportional to 27,901.98, 42,017.99 and 20,164.86 is: 30,366.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,901.98 : 42,017.99 = 20,164.86 : x
  2. Step 2: Convert to fraction form
    27,901.98/42,017.99 = 20,164.86/x
  3. Step 3: Cross multiply
    27,901.98x = 42,017.99 × 20,164.86
  4. Step 4: Simplify right side
    27,901.98x = 847,286,785.01
  5. Step 5: Solve for x
    x = 847,286,785.01/27,901.98
  6. Step 6: Final answer
    x = 30,366.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.