Home / 28,452.67-39,212.64-18,875.66

Finding the Fourth Proportional to 28,452.67, 39,212.64 and 18,875.66

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Solution

The fourth proportional to 28,452.67, 39,212.64 and 18,875.66 is: 26,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.67 : 39,212.64 = 18,875.66 : x
  2. Step 2: Convert to fraction form
    28,452.67/39,212.64 = 18,875.66/x
  3. Step 3: Cross multiply
    28,452.67x = 39,212.64 × 18,875.66
  4. Step 4: Simplify right side
    28,452.67x = 740,164,454.20
  5. Step 5: Solve for x
    x = 740,164,454.20/28,452.67
  6. Step 6: Final answer
    x = 26,013.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.