Home / 26,488.69-39,686.33-13,981.16

Finding the Fourth Proportional to 26,488.69, 39,686.33 and 13,981.16

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Solution

The fourth proportional to 26,488.69, 39,686.33 and 13,981.16 is: 20,947.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,488.69 : 39,686.33 = 13,981.16 : x
  2. Step 2: Convert to fraction form
    26,488.69/39,686.33 = 13,981.16/x
  3. Step 3: Cross multiply
    26,488.69x = 39,686.33 × 13,981.16
  4. Step 4: Simplify right side
    26,488.69x = 554,860,766.06
  5. Step 5: Solve for x
    x = 554,860,766.06/26,488.69
  6. Step 6: Final answer
    x = 20,947.08

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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.