Home / 28,305.41-39,062.12-15,559.25

Finding the Fourth Proportional to 28,305.41, 39,062.12 and 15,559.25

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Solution

The fourth proportional to 28,305.41, 39,062.12 and 15,559.25 is: 21,472.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.41 : 39,062.12 = 15,559.25 : x
  2. Step 2: Convert to fraction form
    28,305.41/39,062.12 = 15,559.25/x
  3. Step 3: Cross multiply
    28,305.41x = 39,062.12 × 15,559.25
  4. Step 4: Simplify right side
    28,305.41x = 607,777,017.50
  5. Step 5: Solve for x
    x = 607,777,017.50/28,305.41
  6. Step 6: Final answer
    x = 21,472.12

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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.