Home / 31,647.12-43,681.68-19,703.46

Finding the Fourth Proportional to 31,647.12, 43,681.68 and 19,703.46

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Solution

The fourth proportional to 31,647.12, 43,681.68 and 19,703.46 is: 27,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.12 : 43,681.68 = 19,703.46 : x
  2. Step 2: Convert to fraction form
    31,647.12/43,681.68 = 19,703.46/x
  3. Step 3: Cross multiply
    31,647.12x = 43,681.68 × 19,703.46
  4. Step 4: Simplify right side
    31,647.12x = 860,680,234.61
  5. Step 5: Solve for x
    x = 860,680,234.61/31,647.12
  6. Step 6: Final answer
    x = 27,196.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.