Home / 38,412.05-57,619.91-18,667.09

Finding the Fourth Proportional to 38,412.05, 57,619.91 and 18,667.09

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Solution

The fourth proportional to 38,412.05, 57,619.91 and 18,667.09 is: 28,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,412.05 : 57,619.91 = 18,667.09 : x
  2. Step 2: Convert to fraction form
    38,412.05/57,619.91 = 18,667.09/x
  3. Step 3: Cross multiply
    38,412.05x = 57,619.91 × 18,667.09
  4. Step 4: Simplify right side
    38,412.05x = 1,075,595,948.38
  5. Step 5: Solve for x
    x = 1,075,595,948.38/38,412.05
  6. Step 6: Final answer
    x = 28,001.52

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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.