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Finding the Fourth Proportional to 29,323.89, 40,465.88 and 15,894.85

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Solution

The fourth proportional to 29,323.89, 40,465.88 and 15,894.85 is: 21,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,323.89 : 40,465.88 = 15,894.85 : x
  2. Step 2: Convert to fraction form
    29,323.89/40,465.88 = 15,894.85/x
  3. Step 3: Cross multiply
    29,323.89x = 40,465.88 × 15,894.85
  4. Step 4: Simplify right side
    29,323.89x = 643,199,161.37
  5. Step 5: Solve for x
    x = 643,199,161.37/29,323.89
  6. Step 6: Final answer
    x = 21,934.31

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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.