Home / 22,197.93-30,630.36-12,639.07

Finding the Fourth Proportional to 22,197.93, 30,630.36 and 12,639.07

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Solution

The fourth proportional to 22,197.93, 30,630.36 and 12,639.07 is: 17,440.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,197.93 : 30,630.36 = 12,639.07 : x
  2. Step 2: Convert to fraction form
    22,197.93/30,630.36 = 12,639.07/x
  3. Step 3: Cross multiply
    22,197.93x = 30,630.36 × 12,639.07
  4. Step 4: Simplify right side
    22,197.93x = 387,139,264.17
  5. Step 5: Solve for x
    x = 387,139,264.17/22,197.93
  6. Step 6: Final answer
    x = 17,440.33

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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.