Home / 29,386.78-40,553.18-16,639.00

Finding the Fourth Proportional to 29,386.78, 40,553.18 and 16,639.00

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Solution

The fourth proportional to 29,386.78, 40,553.18 and 16,639.00 is: 22,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,386.78 : 40,553.18 = 16,639.00 : x
  2. Step 2: Convert to fraction form
    29,386.78/40,553.18 = 16,639.00/x
  3. Step 3: Cross multiply
    29,386.78x = 40,553.18 × 16,639.00
  4. Step 4: Simplify right side
    29,386.78x = 674,764,159.25
  5. Step 5: Solve for x
    x = 674,764,159.25/29,386.78
  6. Step 6: Final answer
    x = 22,961.49

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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.