Home / 43,256.72-64,854.84-19,870.40

Finding the Fourth Proportional to 43,256.72, 64,854.84 and 19,870.40

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Solution

The fourth proportional to 43,256.72, 64,854.84 and 19,870.40 is: 29,791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,256.72 : 64,854.84 = 19,870.40 : x
  2. Step 2: Convert to fraction form
    43,256.72/64,854.84 = 19,870.40/x
  3. Step 3: Cross multiply
    43,256.72x = 64,854.84 × 19,870.40
  4. Step 4: Simplify right side
    43,256.72x = 1,288,691,612.74
  5. Step 5: Solve for x
    x = 1,288,691,612.74/43,256.72
  6. Step 6: Final answer
    x = 29,791.71

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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.