Home / 28,350.33-39,123.48-15,775.08

Finding the Fourth Proportional to 28,350.33, 39,123.48 and 15,775.08

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Solution

The fourth proportional to 28,350.33, 39,123.48 and 15,775.08 is: 21,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.33 : 39,123.48 = 15,775.08 : x
  2. Step 2: Convert to fraction form
    28,350.33/39,123.48 = 15,775.08/x
  3. Step 3: Cross multiply
    28,350.33x = 39,123.48 × 15,775.08
  4. Step 4: Simplify right side
    28,350.33x = 617,176,026.88
  5. Step 5: Solve for x
    x = 617,176,026.88/28,350.33
  6. Step 6: Final answer
    x = 21,769.62

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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.