Home / 28,537.89-42,827.87-13,545.06

Finding the Fourth Proportional to 28,537.89, 42,827.87 and 13,545.06

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Solution

The fourth proportional to 28,537.89, 42,827.87 and 13,545.06 is: 20,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,537.89 : 42,827.87 = 13,545.06 : x
  2. Step 2: Convert to fraction form
    28,537.89/42,827.87 = 13,545.06/x
  3. Step 3: Cross multiply
    28,537.89x = 42,827.87 × 13,545.06
  4. Step 4: Simplify right side
    28,537.89x = 580,106,001.10
  5. Step 5: Solve for x
    x = 580,106,001.10/28,537.89
  6. Step 6: Final answer
    x = 20,327.57

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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.