Home / 28,605.22-42,907.86-11,956.14

Finding the Fourth Proportional to 28,605.22, 42,907.86 and 11,956.14

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Solution

The fourth proportional to 28,605.22, 42,907.86 and 11,956.14 is: 17,934.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.22 : 42,907.86 = 11,956.14 : x
  2. Step 2: Convert to fraction form
    28,605.22/42,907.86 = 11,956.14/x
  3. Step 3: Cross multiply
    28,605.22x = 42,907.86 × 11,956.14
  4. Step 4: Simplify right side
    28,605.22x = 513,012,381.26
  5. Step 5: Solve for x
    x = 513,012,381.26/28,605.22
  6. Step 6: Final answer
    x = 17,934.22

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1.5x scale

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.