Home / 22,856.04-31,533.84-13,422.78

Finding the Fourth Proportional to 22,856.04, 31,533.84 and 13,422.78

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Solution

The fourth proportional to 22,856.04, 31,533.84 and 13,422.78 is: 18,519.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,856.04 : 31,533.84 = 13,422.78 : x
  2. Step 2: Convert to fraction form
    22,856.04/31,533.84 = 13,422.78/x
  3. Step 3: Cross multiply
    22,856.04x = 31,533.84 × 13,422.78
  4. Step 4: Simplify right side
    22,856.04x = 423,271,796.88
  5. Step 5: Solve for x
    x = 423,271,796.88/22,856.04
  6. Step 6: Final answer
    x = 18,519.03

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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.