Home / 51,280.39-76,910.82-21,718.99

Finding the Fourth Proportional to 51,280.39, 76,910.82 and 21,718.99

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Solution

The fourth proportional to 51,280.39, 76,910.82 and 21,718.99 is: 32,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,280.39 : 76,910.82 = 21,718.99 : x
  2. Step 2: Convert to fraction form
    51,280.39/76,910.82 = 21,718.99/x
  3. Step 3: Cross multiply
    51,280.39x = 76,910.82 × 21,718.99
  4. Step 4: Simplify right side
    51,280.39x = 1,670,425,330.47
  5. Step 5: Solve for x
    x = 1,670,425,330.47/51,280.39
  6. Step 6: Final answer
    x = 32,574.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.