Home / 31,723.17-43,774.98-18,973.71

Finding the Fourth Proportional to 31,723.17, 43,774.98 and 18,973.71

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Solution

The fourth proportional to 31,723.17, 43,774.98 and 18,973.71 is: 26,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.17 : 43,774.98 = 18,973.71 : x
  2. Step 2: Convert to fraction form
    31,723.17/43,774.98 = 18,973.71/x
  3. Step 3: Cross multiply
    31,723.17x = 43,774.98 × 18,973.71
  4. Step 4: Simplify right side
    31,723.17x = 830,573,775.78
  5. Step 5: Solve for x
    x = 830,573,775.78/31,723.17
  6. Step 6: Final answer
    x = 26,181.93

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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.