Home / 28,930.35-43,397.45-11,412.48

Finding the Fourth Proportional to 28,930.35, 43,397.45 and 11,412.48

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Solution

The fourth proportional to 28,930.35, 43,397.45 and 11,412.48 is: 17,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.35 : 43,397.45 = 11,412.48 : x
  2. Step 2: Convert to fraction form
    28,930.35/43,397.45 = 11,412.48/x
  3. Step 3: Cross multiply
    28,930.35x = 43,397.45 × 11,412.48
  4. Step 4: Simplify right side
    28,930.35x = 495,272,530.18
  5. Step 5: Solve for x
    x = 495,272,530.18/28,930.35
  6. Step 6: Final answer
    x = 17,119.48

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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.