Home / 29,267.78-40,389.24-15,838.74

Finding the Fourth Proportional to 29,267.78, 40,389.24 and 15,838.74

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Solution

The fourth proportional to 29,267.78, 40,389.24 and 15,838.74 is: 21,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,267.78 : 40,389.24 = 15,838.74 : x
  2. Step 2: Convert to fraction form
    29,267.78/40,389.24 = 15,838.74/x
  3. Step 3: Cross multiply
    29,267.78x = 40,389.24 × 15,838.74
  4. Step 4: Simplify right side
    29,267.78x = 639,714,671.16
  5. Step 5: Solve for x
    x = 639,714,671.16/29,267.78
  6. Step 6: Final answer
    x = 21,857.30

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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.