Home / 29,308.32-40,445.16-15,879.24

Finding the Fourth Proportional to 29,308.32, 40,445.16 and 15,879.24

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Solution

The fourth proportional to 29,308.32, 40,445.16 and 15,879.24 is: 21,913.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,308.32 : 40,445.16 = 15,879.24 : x
  2. Step 2: Convert to fraction form
    29,308.32/40,445.16 = 15,879.24/x
  3. Step 3: Cross multiply
    29,308.32x = 40,445.16 × 15,879.24
  4. Step 4: Simplify right side
    29,308.32x = 642,238,402.48
  5. Step 5: Solve for x
    x = 642,238,402.48/29,308.32
  6. Step 6: Final answer
    x = 21,913.18

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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.