Home / 28,233.40-42,306.90-26,678.20

Finding the Fourth Proportional to 28,233.40, 42,306.90 and 26,678.20

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Solution

The fourth proportional to 28,233.40, 42,306.90 and 26,678.20 is: 39,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.40 : 42,306.90 = 26,678.20 : x
  2. Step 2: Convert to fraction form
    28,233.40/42,306.90 = 26,678.20/x
  3. Step 3: Cross multiply
    28,233.40x = 42,306.90 × 26,678.20
  4. Step 4: Simplify right side
    28,233.40x = 1,128,671,939.58
  5. Step 5: Solve for x
    x = 1,128,671,939.58/28,233.40
  6. Step 6: Final answer
    x = 39,976.48

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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.