Home / 31,974-44,143.02-28,427.40

Finding the Fourth Proportional to 31,974, 44,143.02 and 28,427.40

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Solution

The fourth proportional to 31,974, 44,143.02 and 28,427.40 is: 39,246.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974 : 44,143.02 = 28,427.40 : x
  2. Step 2: Convert to fraction form
    31,974/44,143.02 = 28,427.40/x
  3. Step 3: Cross multiply
    31,974x = 44,143.02 × 28,427.40
  4. Step 4: Simplify right side
    31,974x = 1,254,871,286.75
  5. Step 5: Solve for x
    x = 1,254,871,286.75/31,974
  6. Step 6: Final answer
    x = 39,246.62

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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.