Home / 25,702.81-35,456.19-15,634.33

Finding the Fourth Proportional to 25,702.81, 35,456.19 and 15,634.33

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Solution

The fourth proportional to 25,702.81, 35,456.19 and 15,634.33 is: 21,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,702.81 : 35,456.19 = 15,634.33 : x
  2. Step 2: Convert to fraction form
    25,702.81/35,456.19 = 15,634.33/x
  3. Step 3: Cross multiply
    25,702.81x = 35,456.19 × 15,634.33
  4. Step 4: Simplify right side
    25,702.81x = 554,333,775.00
  5. Step 5: Solve for x
    x = 554,333,775.00/25,702.81
  6. Step 6: Final answer
    x = 21,567.05

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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.