Home / 28,026.14-42,042.29-13,989.69

Finding the Fourth Proportional to 28,026.14, 42,042.29 and 13,989.69

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Solution

The fourth proportional to 28,026.14, 42,042.29 and 13,989.69 is: 20,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.14 : 42,042.29 = 13,989.69 : x
  2. Step 2: Convert to fraction form
    28,026.14/42,042.29 = 13,989.69/x
  3. Step 3: Cross multiply
    28,026.14x = 42,042.29 × 13,989.69
  4. Step 4: Simplify right side
    28,026.14x = 588,158,534.04
  5. Step 5: Solve for x
    x = 588,158,534.04/28,026.14
  6. Step 6: Final answer
    x = 20,986.07

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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.