Home / 36,931.78-55,401.51-11,970.82

Finding the Fourth Proportional to 36,931.78, 55,401.51 and 11,970.82

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Solution

The fourth proportional to 36,931.78, 55,401.51 and 11,970.82 is: 17,957.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,931.78 : 55,401.51 = 11,970.82 : x
  2. Step 2: Convert to fraction form
    36,931.78/55,401.51 = 11,970.82/x
  3. Step 3: Cross multiply
    36,931.78x = 55,401.51 × 11,970.82
  4. Step 4: Simplify right side
    36,931.78x = 663,201,226.93
  5. Step 5: Solve for x
    x = 663,201,226.93/36,931.78
  6. Step 6: Final answer
    x = 17,957.47

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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.