Home / 31,607.95-47,418.86-11,886.51

Finding the Fourth Proportional to 31,607.95, 47,418.86 and 11,886.51

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Solution

The fourth proportional to 31,607.95, 47,418.86 and 11,886.51 is: 17,832.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,607.95 : 47,418.86 = 11,886.51 : x
  2. Step 2: Convert to fraction form
    31,607.95/47,418.86 = 11,886.51/x
  3. Step 3: Cross multiply
    31,607.95x = 47,418.86 × 11,886.51
  4. Step 4: Simplify right side
    31,607.95x = 563,644,753.58
  5. Step 5: Solve for x
    x = 563,644,753.58/31,607.95
  6. Step 6: Final answer
    x = 17,832.37

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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.