Home / 43,162.59-64,726.88-20,969.40

Finding the Fourth Proportional to 43,162.59, 64,726.88 and 20,969.40

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Solution

The fourth proportional to 43,162.59, 64,726.88 and 20,969.40 is: 31,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,162.59 : 64,726.88 = 20,969.40 : x
  2. Step 2: Convert to fraction form
    43,162.59/64,726.88 = 20,969.40/x
  3. Step 3: Cross multiply
    43,162.59x = 64,726.88 × 20,969.40
  4. Step 4: Simplify right side
    43,162.59x = 1,357,283,837.47
  5. Step 5: Solve for x
    x = 1,357,283,837.47/43,162.59
  6. Step 6: Final answer
    x = 31,445.84

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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.