Home / 30,011.76-41,366.84-21,283.34

Finding the Fourth Proportional to 30,011.76, 41,366.84 and 21,283.34

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Solution

The fourth proportional to 30,011.76, 41,366.84 and 21,283.34 is: 29,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,011.76 : 41,366.84 = 21,283.34 : x
  2. Step 2: Convert to fraction form
    30,011.76/41,366.84 = 21,283.34/x
  3. Step 3: Cross multiply
    30,011.76x = 41,366.84 × 21,283.34
  4. Step 4: Simplify right side
    30,011.76x = 880,424,207.19
  5. Step 5: Solve for x
    x = 880,424,207.19/30,011.76
  6. Step 6: Final answer
    x = 29,335.97

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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.