Home / 31,557.22-47,322.02-11,821.94

Finding the Fourth Proportional to 31,557.22, 47,322.02 and 11,821.94

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Solution

The fourth proportional to 31,557.22, 47,322.02 and 11,821.94 is: 17,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,557.22 : 47,322.02 = 11,821.94 : x
  2. Step 2: Convert to fraction form
    31,557.22/47,322.02 = 11,821.94/x
  3. Step 3: Cross multiply
    31,557.22x = 47,322.02 × 11,821.94
  4. Step 4: Simplify right side
    31,557.22x = 559,438,081.12
  5. Step 5: Solve for x
    x = 559,438,081.12/31,557.22
  6. Step 6: Final answer
    x = 17,727.74

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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.