Home / 30,288.06-45,201.78-28,282.71

Finding the Fourth Proportional to 30,288.06, 45,201.78 and 28,282.71

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Solution

The fourth proportional to 30,288.06, 45,201.78 and 28,282.71 is: 42,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.06 : 45,201.78 = 28,282.71 : x
  2. Step 2: Convert to fraction form
    30,288.06/45,201.78 = 28,282.71/x
  3. Step 3: Cross multiply
    30,288.06x = 45,201.78 × 28,282.71
  4. Step 4: Simplify right side
    30,288.06x = 1,278,428,835.22
  5. Step 5: Solve for x
    x = 1,278,428,835.22/30,288.06
  6. Step 6: Final answer
    x = 42,209.00

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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.