Home / 28,146.83-42,220.19-13,347.65

Finding the Fourth Proportional to 28,146.83, 42,220.19 and 13,347.65

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Solution

The fourth proportional to 28,146.83, 42,220.19 and 13,347.65 is: 20,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.83 : 42,220.19 = 13,347.65 : x
  2. Step 2: Convert to fraction form
    28,146.83/42,220.19 = 13,347.65/x
  3. Step 3: Cross multiply
    28,146.83x = 42,220.19 × 13,347.65
  4. Step 4: Simplify right side
    28,146.83x = 563,540,457.97
  5. Step 5: Solve for x
    x = 563,540,457.97/28,146.83
  6. Step 6: Final answer
    x = 20,021.46

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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.