Home / 31,364.14-43,302.78-19,440.13

Finding the Fourth Proportional to 31,364.14, 43,302.78 and 19,440.13

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Solution

The fourth proportional to 31,364.14, 43,302.78 and 19,440.13 is: 26,839.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.14 : 43,302.78 = 19,440.13 : x
  2. Step 2: Convert to fraction form
    31,364.14/43,302.78 = 19,440.13/x
  3. Step 3: Cross multiply
    31,364.14x = 43,302.78 × 19,440.13
  4. Step 4: Simplify right side
    31,364.14x = 841,811,672.56
  5. Step 5: Solve for x
    x = 841,811,672.56/31,364.14
  6. Step 6: Final answer
    x = 26,839.94

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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.