Home / 28,821.84-42,946.25-25,677.69

Finding the Fourth Proportional to 28,821.84, 42,946.25 and 25,677.69

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Solution

The fourth proportional to 28,821.84, 42,946.25 and 25,677.69 is: 38,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.84 : 42,946.25 = 25,677.69 : x
  2. Step 2: Convert to fraction form
    28,821.84/42,946.25 = 25,677.69/x
  3. Step 3: Cross multiply
    28,821.84x = 42,946.25 × 25,677.69
  4. Step 4: Simplify right side
    28,821.84x = 1,102,760,397.73
  5. Step 5: Solve for x
    x = 1,102,760,397.73/28,821.84
  6. Step 6: Final answer
    x = 38,261.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.