Home / 28,645.13-42,973.16-13,062.75

Finding the Fourth Proportional to 28,645.13, 42,973.16 and 13,062.75

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Solution

The fourth proportional to 28,645.13, 42,973.16 and 13,062.75 is: 19,596.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.13 : 42,973.16 = 13,062.75 : x
  2. Step 2: Convert to fraction form
    28,645.13/42,973.16 = 13,062.75/x
  3. Step 3: Cross multiply
    28,645.13x = 42,973.16 × 13,062.75
  4. Step 4: Simplify right side
    28,645.13x = 561,347,580.48
  5. Step 5: Solve for x
    x = 561,347,580.48/28,645.13
  6. Step 6: Final answer
    x = 19,596.62

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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.