Home / 22,581.54-31,161.96-12,509.80

Finding the Fourth Proportional to 22,581.54, 31,161.96 and 12,509.80

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Solution

The fourth proportional to 22,581.54, 31,161.96 and 12,509.80 is: 17,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.54 : 31,161.96 = 12,509.80 : x
  2. Step 2: Convert to fraction form
    22,581.54/31,161.96 = 12,509.80/x
  3. Step 3: Cross multiply
    22,581.54x = 31,161.96 × 12,509.80
  4. Step 4: Simplify right side
    22,581.54x = 389,829,887.21
  5. Step 5: Solve for x
    x = 389,829,887.21/22,581.54
  6. Step 6: Final answer
    x = 17,263.21

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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.