Home / 28,242.51-38,974.70-15,667.26

Finding the Fourth Proportional to 28,242.51, 38,974.70 and 15,667.26

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Solution

The fourth proportional to 28,242.51, 38,974.70 and 15,667.26 is: 21,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.51 : 38,974.70 = 15,667.26 : x
  2. Step 2: Convert to fraction form
    28,242.51/38,974.70 = 15,667.26/x
  3. Step 3: Cross multiply
    28,242.51x = 38,974.70 × 15,667.26
  4. Step 4: Simplify right side
    28,242.51x = 610,626,758.32
  5. Step 5: Solve for x
    x = 610,626,758.32/28,242.51
  6. Step 6: Final answer
    x = 21,620.84

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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.