Home / 22,622.76-31,222.80-13,190.04

Finding the Fourth Proportional to 22,622.76, 31,222.80 and 13,190.04

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Solution

The fourth proportional to 22,622.76, 31,222.80 and 13,190.04 is: 18,204.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.76 : 31,222.80 = 13,190.04 : x
  2. Step 2: Convert to fraction form
    22,622.76/31,222.80 = 13,190.04/x
  3. Step 3: Cross multiply
    22,622.76x = 31,222.80 × 13,190.04
  4. Step 4: Simplify right side
    22,622.76x = 411,829,980.91
  5. Step 5: Solve for x
    x = 411,829,980.91/22,622.76
  6. Step 6: Final answer
    x = 18,204.23

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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.