Home / 21,350.26-29,464.50-12,400.57

Finding the Fourth Proportional to 21,350.26, 29,464.50 and 12,400.57

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Solution

The fourth proportional to 21,350.26, 29,464.50 and 12,400.57 is: 17,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.26 : 29,464.50 = 12,400.57 : x
  2. Step 2: Convert to fraction form
    21,350.26/29,464.50 = 12,400.57/x
  3. Step 3: Cross multiply
    21,350.26x = 29,464.50 × 12,400.57
  4. Step 4: Simplify right side
    21,350.26x = 365,376,594.77
  5. Step 5: Solve for x
    x = 365,376,594.77/21,350.26
  6. Step 6: Final answer
    x = 17,113.45

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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.