Home / 22,710.56-31,333.28-13,755.20

Finding the Fourth Proportional to 22,710.56, 31,333.28 and 13,755.20

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Solution

The fourth proportional to 22,710.56, 31,333.28 and 13,755.20 is: 18,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,710.56 : 31,333.28 = 13,755.20 : x
  2. Step 2: Convert to fraction form
    22,710.56/31,333.28 = 13,755.20/x
  3. Step 3: Cross multiply
    22,710.56x = 31,333.28 × 13,755.20
  4. Step 4: Simplify right side
    22,710.56x = 430,995,533.06
  5. Step 5: Solve for x
    x = 430,995,533.06/22,710.56
  6. Step 6: Final answer
    x = 18,977.76

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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.