Home / 31,886.88-47,830.67-13,154.01

Finding the Fourth Proportional to 31,886.88, 47,830.67 and 13,154.01

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Solution

The fourth proportional to 31,886.88, 47,830.67 and 13,154.01 is: 19,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,886.88 : 47,830.67 = 13,154.01 : x
  2. Step 2: Convert to fraction form
    31,886.88/47,830.67 = 13,154.01/x
  3. Step 3: Cross multiply
    31,886.88x = 47,830.67 × 13,154.01
  4. Step 4: Simplify right side
    31,886.88x = 629,165,045.72
  5. Step 5: Solve for x
    x = 629,165,045.72/31,886.88
  6. Step 6: Final answer
    x = 19,731.16

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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.