Home / 28,667.04-39,559.17-15,921.05

Finding the Fourth Proportional to 28,667.04, 39,559.17 and 15,921.05

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Solution

The fourth proportional to 28,667.04, 39,559.17 and 15,921.05 is: 21,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667.04 : 39,559.17 = 15,921.05 : x
  2. Step 2: Convert to fraction form
    28,667.04/39,559.17 = 15,921.05/x
  3. Step 3: Cross multiply
    28,667.04x = 39,559.17 × 15,921.05
  4. Step 4: Simplify right side
    28,667.04x = 629,823,325.73
  5. Step 5: Solve for x
    x = 629,823,325.73/28,667.04
  6. Step 6: Final answer
    x = 21,970.30

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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.