Home / 30,255.92-45,458.03-28,577.40

Finding the Fourth Proportional to 30,255.92, 45,458.03 and 28,577.40

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Solution

The fourth proportional to 30,255.92, 45,458.03 and 28,577.40 is: 42,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,255.92 : 45,458.03 = 28,577.40 : x
  2. Step 2: Convert to fraction form
    30,255.92/45,458.03 = 28,577.40/x
  3. Step 3: Cross multiply
    30,255.92x = 45,458.03 × 28,577.40
  4. Step 4: Simplify right side
    30,255.92x = 1,299,072,306.52
  5. Step 5: Solve for x
    x = 1,299,072,306.52/30,255.92
  6. Step 6: Final answer
    x = 42,936.14

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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.