Home / 27,667.16-38,168.52-18,711.36

Finding the Fourth Proportional to 27,667.16, 38,168.52 and 18,711.36

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Solution

The fourth proportional to 27,667.16, 38,168.52 and 18,711.36 is: 25,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,667.16 : 38,168.52 = 18,711.36 : x
  2. Step 2: Convert to fraction form
    27,667.16/38,168.52 = 18,711.36/x
  3. Step 3: Cross multiply
    27,667.16x = 38,168.52 × 18,711.36
  4. Step 4: Simplify right side
    27,667.16x = 714,184,918.39
  5. Step 5: Solve for x
    x = 714,184,918.39/27,667.16
  6. Step 6: Final answer
    x = 25,813.45

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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.