Home / 22,579.77-31,157.13-13,020.02

Finding the Fourth Proportional to 22,579.77, 31,157.13 and 13,020.02

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Solution

The fourth proportional to 22,579.77, 31,157.13 and 13,020.02 is: 17,965.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.77 : 31,157.13 = 13,020.02 : x
  2. Step 2: Convert to fraction form
    22,579.77/31,157.13 = 13,020.02/x
  3. Step 3: Cross multiply
    22,579.77x = 31,157.13 × 13,020.02
  4. Step 4: Simplify right side
    22,579.77x = 405,666,465.62
  5. Step 5: Solve for x
    x = 405,666,465.62/22,579.77
  6. Step 6: Final answer
    x = 17,965.92

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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.