Home / 26,488.68-39,672.54-12,647.40

Finding the Fourth Proportional to 26,488.68, 39,672.54 and 12,647.40

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Solution

The fourth proportional to 26,488.68, 39,672.54 and 12,647.40 is: 18,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,488.68 : 39,672.54 = 12,647.40 : x
  2. Step 2: Convert to fraction form
    26,488.68/39,672.54 = 12,647.40/x
  3. Step 3: Cross multiply
    26,488.68x = 39,672.54 × 12,647.40
  4. Step 4: Simplify right side
    26,488.68x = 501,754,482.40
  5. Step 5: Solve for x
    x = 501,754,482.40/26,488.68
  6. Step 6: Final answer
    x = 18,942.22

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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.