Home / 29,966.17-41,368.86-21,890.76

Finding the Fourth Proportional to 29,966.17, 41,368.86 and 21,890.76

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Solution

The fourth proportional to 29,966.17, 41,368.86 and 21,890.76 is: 30,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,966.17 : 41,368.86 = 21,890.76 : x
  2. Step 2: Convert to fraction form
    29,966.17/41,368.86 = 21,890.76/x
  3. Step 3: Cross multiply
    29,966.17x = 41,368.86 × 21,890.76
  4. Step 4: Simplify right side
    29,966.17x = 905,595,712.69
  5. Step 5: Solve for x
    x = 905,595,712.69/29,966.17
  6. Step 6: Final answer
    x = 30,220.60

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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.