Home / 29,400.78-40,552.95-18,785.70

Finding the Fourth Proportional to 29,400.78, 40,552.95 and 18,785.70

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Solution

The fourth proportional to 29,400.78, 40,552.95 and 18,785.70 is: 25,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.78 : 40,552.95 = 18,785.70 : x
  2. Step 2: Convert to fraction form
    29,400.78/40,552.95 = 18,785.70/x
  3. Step 3: Cross multiply
    29,400.78x = 40,552.95 × 18,785.70
  4. Step 4: Simplify right side
    29,400.78x = 761,815,552.82
  5. Step 5: Solve for x
    x = 761,815,552.82/29,400.78
  6. Step 6: Final answer
    x = 25,911.41

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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.