Home / 22,775.46-31,430.19-12,704.55

Finding the Fourth Proportional to 22,775.46, 31,430.19 and 12,704.55

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Solution

The fourth proportional to 22,775.46, 31,430.19 and 12,704.55 is: 17,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.46 : 31,430.19 = 12,704.55 : x
  2. Step 2: Convert to fraction form
    22,775.46/31,430.19 = 12,704.55/x
  3. Step 3: Cross multiply
    22,775.46x = 31,430.19 × 12,704.55
  4. Step 4: Simplify right side
    22,775.46x = 399,306,420.36
  5. Step 5: Solve for x
    x = 399,306,420.36/22,775.46
  6. Step 6: Final answer
    x = 17,532.31

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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.