Home / 21,995.26-30,358.74-12,569.32

Finding the Fourth Proportional to 21,995.26, 30,358.74 and 12,569.32

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Solution

The fourth proportional to 21,995.26, 30,358.74 and 12,569.32 is: 17,348.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.26 : 30,358.74 = 12,569.32 : x
  2. Step 2: Convert to fraction form
    21,995.26/30,358.74 = 12,569.32/x
  3. Step 3: Cross multiply
    21,995.26x = 30,358.74 × 12,569.32
  4. Step 4: Simplify right side
    21,995.26x = 381,588,717.86
  5. Step 5: Solve for x
    x = 381,588,717.86/21,995.26
  6. Step 6: Final answer
    x = 17,348.68

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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.