Home / 29,156.28-40,228.81-17,221.40

Finding the Fourth Proportional to 29,156.28, 40,228.81 and 17,221.40

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Solution

The fourth proportional to 29,156.28, 40,228.81 and 17,221.40 is: 23,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,156.28 : 40,228.81 = 17,221.40 : x
  2. Step 2: Convert to fraction form
    29,156.28/40,228.81 = 17,221.40/x
  3. Step 3: Cross multiply
    29,156.28x = 40,228.81 × 17,221.40
  4. Step 4: Simplify right side
    29,156.28x = 692,796,428.53
  5. Step 5: Solve for x
    x = 692,796,428.53/29,156.28
  6. Step 6: Final answer
    x = 23,761.48

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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.