Home / 43,257.12-64,895.30-13,275.53

Finding the Fourth Proportional to 43,257.12, 64,895.30 and 13,275.53

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Solution

The fourth proportional to 43,257.12, 64,895.30 and 13,275.53 is: 19,916.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,257.12 : 64,895.30 = 13,275.53 : x
  2. Step 2: Convert to fraction form
    43,257.12/64,895.30 = 13,275.53/x
  3. Step 3: Cross multiply
    43,257.12x = 64,895.30 × 13,275.53
  4. Step 4: Simplify right side
    43,257.12x = 861,519,502.01
  5. Step 5: Solve for x
    x = 861,519,502.01/43,257.12
  6. Step 6: Final answer
    x = 19,916.25

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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.