Home / 22,397.72-30,911.63-12,966.35

Finding the Fourth Proportional to 22,397.72, 30,911.63 and 12,966.35

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Solution

The fourth proportional to 22,397.72, 30,911.63 and 12,966.35 is: 17,895.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,397.72 : 30,911.63 = 12,966.35 : x
  2. Step 2: Convert to fraction form
    22,397.72/30,911.63 = 12,966.35/x
  3. Step 3: Cross multiply
    22,397.72x = 30,911.63 × 12,966.35
  4. Step 4: Simplify right side
    22,397.72x = 400,810,794.26
  5. Step 5: Solve for x
    x = 400,810,794.26/22,397.72
  6. Step 6: Final answer
    x = 17,895.16

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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.