Home / 31,629.10-47,407.13-11,895.07

Finding the Fourth Proportional to 31,629.10, 47,407.13 and 11,895.07

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Solution

The fourth proportional to 31,629.10, 47,407.13 and 11,895.07 is: 17,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,629.10 : 47,407.13 = 11,895.07 : x
  2. Step 2: Convert to fraction form
    31,629.10/47,407.13 = 11,895.07/x
  3. Step 3: Cross multiply
    31,629.10x = 47,407.13 × 11,895.07
  4. Step 4: Simplify right side
    31,629.10x = 563,911,129.85
  5. Step 5: Solve for x
    x = 563,911,129.85/31,629.10
  6. Step 6: Final answer
    x = 17,828.87

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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.