Home / 34,346.20-47,398.26-20,918.08

Finding the Fourth Proportional to 34,346.20, 47,398.26 and 20,918.08

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Solution

The fourth proportional to 34,346.20, 47,398.26 and 20,918.08 is: 28,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,346.20 : 47,398.26 = 20,918.08 : x
  2. Step 2: Convert to fraction form
    34,346.20/47,398.26 = 20,918.08/x
  3. Step 3: Cross multiply
    34,346.20x = 47,398.26 × 20,918.08
  4. Step 4: Simplify right side
    34,346.20x = 991,480,594.54
  5. Step 5: Solve for x
    x = 991,480,594.54/34,346.20
  6. Step 6: Final answer
    x = 28,867.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.