Home / 19,981.65-27,575.35-10,907.55

Finding the Fourth Proportional to 19,981.65, 27,575.35 and 10,907.55

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Solution

The fourth proportional to 19,981.65, 27,575.35 and 10,907.55 is: 15,052.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.65 : 27,575.35 = 10,907.55 : x
  2. Step 2: Convert to fraction form
    19,981.65/27,575.35 = 10,907.55/x
  3. Step 3: Cross multiply
    19,981.65x = 27,575.35 × 10,907.55
  4. Step 4: Simplify right side
    19,981.65x = 300,779,454.35
  5. Step 5: Solve for x
    x = 300,779,454.35/19,981.65
  6. Step 6: Final answer
    x = 15,052.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.