Home / 36,931.65-55,406.22-11,971.71

Finding the Fourth Proportional to 36,931.65, 55,406.22 and 11,971.71

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Solution

The fourth proportional to 36,931.65, 55,406.22 and 11,971.71 is: 17,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,931.65 : 55,406.22 = 11,971.71 : x
  2. Step 2: Convert to fraction form
    36,931.65/55,406.22 = 11,971.71/x
  3. Step 3: Cross multiply
    36,931.65x = 55,406.22 × 11,971.71
  4. Step 4: Simplify right side
    36,931.65x = 663,307,198.04
  5. Step 5: Solve for x
    x = 663,307,198.04/36,931.65
  6. Step 6: Final answer
    x = 17,960.40

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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.