Home / 37,667.40-51,981.53-20,671.38

Finding the Fourth Proportional to 37,667.40, 51,981.53 and 20,671.38

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Solution

The fourth proportional to 37,667.40, 51,981.53 and 20,671.38 is: 28,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,667.40 : 51,981.53 = 20,671.38 : x
  2. Step 2: Convert to fraction form
    37,667.40/51,981.53 = 20,671.38/x
  3. Step 3: Cross multiply
    37,667.40x = 51,981.53 × 20,671.38
  4. Step 4: Simplify right side
    37,667.40x = 1,074,529,856.25
  5. Step 5: Solve for x
    x = 1,074,529,856.25/37,667.40
  6. Step 6: Final answer
    x = 28,526.79

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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.