Home / 22,851.11-31,533.30-12,777.55

Finding the Fourth Proportional to 22,851.11, 31,533.30 and 12,777.55

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Solution

The fourth proportional to 22,851.11, 31,533.30 and 12,777.55 is: 17,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,851.11 : 31,533.30 = 12,777.55 : x
  2. Step 2: Convert to fraction form
    22,851.11/31,533.30 = 12,777.55/x
  3. Step 3: Cross multiply
    22,851.11x = 31,533.30 × 12,777.55
  4. Step 4: Simplify right side
    22,851.11x = 402,918,238.58
  5. Step 5: Solve for x
    x = 402,918,238.58/22,851.11
  6. Step 6: Final answer
    x = 17,632.32

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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.