Home / 31,589.20-43,458.96-30,714.40

Finding the Fourth Proportional to 31,589.20, 43,458.96 and 30,714.40

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Solution

The fourth proportional to 31,589.20, 43,458.96 and 30,714.40 is: 42,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.20 : 43,458.96 = 30,714.40 : x
  2. Step 2: Convert to fraction form
    31,589.20/43,458.96 = 30,714.40/x
  3. Step 3: Cross multiply
    31,589.20x = 43,458.96 × 30,714.40
  4. Step 4: Simplify right side
    31,589.20x = 1,334,815,881.02
  5. Step 5: Solve for x
    x = 1,334,815,881.02/31,589.20
  6. Step 6: Final answer
    x = 42,255.45

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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.