Home / 21,162.88-31,749.55-14,935.06

Finding the Fourth Proportional to 21,162.88, 31,749.55 and 14,935.06

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Solution

The fourth proportional to 21,162.88, 31,749.55 and 14,935.06 is: 22,406.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.88 : 31,749.55 = 14,935.06 : x
  2. Step 2: Convert to fraction form
    21,162.88/31,749.55 = 14,935.06/x
  3. Step 3: Cross multiply
    21,162.88x = 31,749.55 × 14,935.06
  4. Step 4: Simplify right side
    21,162.88x = 474,181,317.51
  5. Step 5: Solve for x
    x = 474,181,317.51/21,162.88
  6. Step 6: Final answer
    x = 22,406.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.