Home / 30,255.84-45,377.76-28,755.60

Finding the Fourth Proportional to 30,255.84, 45,377.76 and 28,755.60

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Solution

The fourth proportional to 30,255.84, 45,377.76 and 28,755.60 is: 43,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,255.84 : 45,377.76 = 28,755.60 : x
  2. Step 2: Convert to fraction form
    30,255.84/45,377.76 = 28,755.60/x
  3. Step 3: Cross multiply
    30,255.84x = 45,377.76 × 28,755.60
  4. Step 4: Simplify right side
    30,255.84x = 1,304,864,715.46
  5. Step 5: Solve for x
    x = 1,304,864,715.46/30,255.84
  6. Step 6: Final answer
    x = 43,127.70

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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.