Home / 26,681.28-40,030.56-12,828.48

Finding the Fourth Proportional to 26,681.28, 40,030.56 and 12,828.48

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Solution

The fourth proportional to 26,681.28, 40,030.56 and 12,828.48 is: 19,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,681.28 : 40,030.56 = 12,828.48 : x
  2. Step 2: Convert to fraction form
    26,681.28/40,030.56 = 12,828.48/x
  3. Step 3: Cross multiply
    26,681.28x = 40,030.56 × 12,828.48
  4. Step 4: Simplify right side
    26,681.28x = 513,531,238.35
  5. Step 5: Solve for x
    x = 513,531,238.35/26,681.28
  6. Step 6: Final answer
    x = 19,246.87

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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.