Home / 22,402.36-30,909.54-12,970.36

Finding the Fourth Proportional to 22,402.36, 30,909.54 and 12,970.36

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Solution

The fourth proportional to 22,402.36, 30,909.54 and 12,970.36 is: 17,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.36 : 30,909.54 = 12,970.36 : x
  2. Step 2: Convert to fraction form
    22,402.36/30,909.54 = 12,970.36/x
  3. Step 3: Cross multiply
    22,402.36x = 30,909.54 × 12,970.36
  4. Step 4: Simplify right side
    22,402.36x = 400,907,861.23
  5. Step 5: Solve for x
    x = 400,907,861.23/22,402.36
  6. Step 6: Final answer
    x = 17,895.79

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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.