Home / 28,146.80-42,194.28-13,362.68

Finding the Fourth Proportional to 28,146.80, 42,194.28 and 13,362.68

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Solution

The fourth proportional to 28,146.80, 42,194.28 and 13,362.68 is: 20,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.80 : 42,194.28 = 13,362.68 : x
  2. Step 2: Convert to fraction form
    28,146.80/42,194.28 = 13,362.68/x
  3. Step 3: Cross multiply
    28,146.80x = 42,194.28 × 13,362.68
  4. Step 4: Simplify right side
    28,146.80x = 563,828,661.47
  5. Step 5: Solve for x
    x = 563,828,661.47/28,146.80
  6. Step 6: Final answer
    x = 20,031.71

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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.