Home / 19,779.30-27,294.06-11,281.79

Finding the Fourth Proportional to 19,779.30, 27,294.06 and 11,281.79

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Solution

The fourth proportional to 19,779.30, 27,294.06 and 11,281.79 is: 15,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.30 : 27,294.06 = 11,281.79 : x
  2. Step 2: Convert to fraction form
    19,779.30/27,294.06 = 11,281.79/x
  3. Step 3: Cross multiply
    19,779.30x = 27,294.06 × 11,281.79
  4. Step 4: Simplify right side
    19,779.30x = 307,925,716.70
  5. Step 5: Solve for x
    x = 307,925,716.70/19,779.30
  6. Step 6: Final answer
    x = 15,568.08

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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.