Home / 31,121.15-46,681.52-14,472

Finding the Fourth Proportional to 31,121.15, 46,681.52 and 14,472

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Solution

The fourth proportional to 31,121.15, 46,681.52 and 14,472 is: 21,707.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.15 : 46,681.52 = 14,472 : x
  2. Step 2: Convert to fraction form
    31,121.15/46,681.52 = 14,472/x
  3. Step 3: Cross multiply
    31,121.15x = 46,681.52 × 14,472
  4. Step 4: Simplify right side
    31,121.15x = 675,574,885.08
  5. Step 5: Solve for x
    x = 675,574,885.08/31,121.15
  6. Step 6: Final answer
    x = 21,707.91

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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.