Home / 18,779.04-28,186.79-10,020.11

Finding the Fourth Proportional to 18,779.04, 28,186.79 and 10,020.11

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Solution

The fourth proportional to 18,779.04, 28,186.79 and 10,020.11 is: 15,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.04 : 28,186.79 = 10,020.11 : x
  2. Step 2: Convert to fraction form
    18,779.04/28,186.79 = 10,020.11/x
  3. Step 3: Cross multiply
    18,779.04x = 28,186.79 × 10,020.11
  4. Step 4: Simplify right side
    18,779.04x = 282,434,545.31
  5. Step 5: Solve for x
    x = 282,434,545.31/18,779.04
  6. Step 6: Final answer
    x = 15,039.88

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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.