Home / 21,751.19-32,570.04-11,870.07

Finding the Fourth Proportional to 21,751.19, 32,570.04 and 11,870.07

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Solution

The fourth proportional to 21,751.19, 32,570.04 and 11,870.07 is: 17,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.19 : 32,570.04 = 11,870.07 : x
  2. Step 2: Convert to fraction form
    21,751.19/32,570.04 = 11,870.07/x
  3. Step 3: Cross multiply
    21,751.19x = 32,570.04 × 11,870.07
  4. Step 4: Simplify right side
    21,751.19x = 386,608,654.70
  5. Step 5: Solve for x
    x = 386,608,654.70/21,751.19
  6. Step 6: Final answer
    x = 17,774.14

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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.