Home / 31,106.68-46,655.64-8,921.94

Finding the Fourth Proportional to 31,106.68, 46,655.64 and 8,921.94

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Solution

The fourth proportional to 31,106.68, 46,655.64 and 8,921.94 is: 13,381.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,106.68 : 46,655.64 = 8,921.94 : x
  2. Step 2: Convert to fraction form
    31,106.68/46,655.64 = 8,921.94/x
  3. Step 3: Cross multiply
    31,106.68x = 46,655.64 × 8,921.94
  4. Step 4: Simplify right side
    31,106.68x = 416,258,820.74
  5. Step 5: Solve for x
    x = 416,258,820.74/31,106.68
  6. Step 6: Final answer
    x = 13,381.65

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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.