Home / 51,017.25-70,402.14-28,355.61

Finding the Fourth Proportional to 51,017.25, 70,402.14 and 28,355.61

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Solution

The fourth proportional to 51,017.25, 70,402.14 and 28,355.61 is: 39,129.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,017.25 : 70,402.14 = 28,355.61 : x
  2. Step 2: Convert to fraction form
    51,017.25/70,402.14 = 28,355.61/x
  3. Step 3: Cross multiply
    51,017.25x = 70,402.14 × 28,355.61
  4. Step 4: Simplify right side
    51,017.25x = 1,996,295,625.01
  5. Step 5: Solve for x
    x = 1,996,295,625.01/51,017.25
  6. Step 6: Final answer
    x = 39,129.82

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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.