Home / 28,295.19-39,047.16-15,548.49

Finding the Fourth Proportional to 28,295.19, 39,047.16 and 15,548.49

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Solution

The fourth proportional to 28,295.19, 39,047.16 and 15,548.49 is: 21,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.19 : 39,047.16 = 15,548.49 : x
  2. Step 2: Convert to fraction form
    28,295.19/39,047.16 = 15,548.49/x
  3. Step 3: Cross multiply
    28,295.19x = 39,047.16 × 15,548.49
  4. Step 4: Simplify right side
    28,295.19x = 607,124,435.10
  5. Step 5: Solve for x
    x = 607,124,435.10/28,295.19
  6. Step 6: Final answer
    x = 21,456.81

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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.