Home / 26,118.81-39,178.35-12,968.10

Finding the Fourth Proportional to 26,118.81, 39,178.35 and 12,968.10

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Solution

The fourth proportional to 26,118.81, 39,178.35 and 12,968.10 is: 19,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,118.81 : 39,178.35 = 12,968.10 : x
  2. Step 2: Convert to fraction form
    26,118.81/39,178.35 = 12,968.10/x
  3. Step 3: Cross multiply
    26,118.81x = 39,178.35 × 12,968.10
  4. Step 4: Simplify right side
    26,118.81x = 508,068,760.64
  5. Step 5: Solve for x
    x = 508,068,760.64/26,118.81
  6. Step 6: Final answer
    x = 19,452.22

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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.