Home / 26,721.34-40,070.40-12,685.38

Finding the Fourth Proportional to 26,721.34, 40,070.40 and 12,685.38

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Solution

The fourth proportional to 26,721.34, 40,070.40 and 12,685.38 is: 19,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,721.34 : 40,070.40 = 12,685.38 : x
  2. Step 2: Convert to fraction form
    26,721.34/40,070.40 = 12,685.38/x
  3. Step 3: Cross multiply
    26,721.34x = 40,070.40 × 12,685.38
  4. Step 4: Simplify right side
    26,721.34x = 508,308,250.75
  5. Step 5: Solve for x
    x = 508,308,250.75/26,721.34
  6. Step 6: Final answer
    x = 19,022.56

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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.