Home / 26,931-40,360.84-20,667.07

Finding the Fourth Proportional to 26,931, 40,360.84 and 20,667.07

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Solution

The fourth proportional to 26,931, 40,360.84 and 20,667.07 is: 30,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931 : 40,360.84 = 20,667.07 : x
  2. Step 2: Convert to fraction form
    26,931/40,360.84 = 20,667.07/x
  3. Step 3: Cross multiply
    26,931x = 40,360.84 × 20,667.07
  4. Step 4: Simplify right side
    26,931x = 834,140,305.54
  5. Step 5: Solve for x
    x = 834,140,305.54/26,931
  6. Step 6: Final answer
    x = 30,973.24

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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.