Home / 28,330.35-42,458.56-11,673.61

Finding the Fourth Proportional to 28,330.35, 42,458.56 and 11,673.61

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Solution

The fourth proportional to 28,330.35, 42,458.56 and 11,673.61 is: 17,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.35 : 42,458.56 = 11,673.61 : x
  2. Step 2: Convert to fraction form
    28,330.35/42,458.56 = 11,673.61/x
  3. Step 3: Cross multiply
    28,330.35x = 42,458.56 × 11,673.61
  4. Step 4: Simplify right side
    28,330.35x = 495,644,670.60
  5. Step 5: Solve for x
    x = 495,644,670.60/28,330.35
  6. Step 6: Final answer
    x = 17,495.18

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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.