Home / 31,126.71-46,682.95-8,939.91

Finding the Fourth Proportional to 31,126.71, 46,682.95 and 8,939.91

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Solution

The fourth proportional to 31,126.71, 46,682.95 and 8,939.91 is: 13,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,126.71 : 46,682.95 = 8,939.91 : x
  2. Step 2: Convert to fraction form
    31,126.71/46,682.95 = 8,939.91/x
  3. Step 3: Cross multiply
    31,126.71x = 46,682.95 × 8,939.91
  4. Step 4: Simplify right side
    31,126.71x = 417,341,371.53
  5. Step 5: Solve for x
    x = 417,341,371.53/31,126.71
  6. Step 6: Final answer
    x = 13,407.82

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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.