Home / 31,543.84-43,535.51-18,968.59

Finding the Fourth Proportional to 31,543.84, 43,535.51 and 18,968.59

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Solution

The fourth proportional to 31,543.84, 43,535.51 and 18,968.59 is: 26,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.84 : 43,535.51 = 18,968.59 : x
  2. Step 2: Convert to fraction form
    31,543.84/43,535.51 = 18,968.59/x
  3. Step 3: Cross multiply
    31,543.84x = 43,535.51 × 18,968.59
  4. Step 4: Simplify right side
    31,543.84x = 825,807,239.63
  5. Step 5: Solve for x
    x = 825,807,239.63/31,543.84
  6. Step 6: Final answer
    x = 26,179.67

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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.