Home / 30,340.63-41,877.03-19,711.81

Finding the Fourth Proportional to 30,340.63, 41,877.03 and 19,711.81

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Solution

The fourth proportional to 30,340.63, 41,877.03 and 19,711.81 is: 27,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.63 : 41,877.03 = 19,711.81 : x
  2. Step 2: Convert to fraction form
    30,340.63/41,877.03 = 19,711.81/x
  3. Step 3: Cross multiply
    30,340.63x = 41,877.03 × 19,711.81
  4. Step 4: Simplify right side
    30,340.63x = 825,472,058.72
  5. Step 5: Solve for x
    x = 825,472,058.72/30,340.63
  6. Step 6: Final answer
    x = 27,206.82

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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.