Home / 22,051.19-30,430.86-11,979.71

Finding the Fourth Proportional to 22,051.19, 30,430.86 and 11,979.71

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Solution

The fourth proportional to 22,051.19, 30,430.86 and 11,979.71 is: 16,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.19 : 30,430.86 = 11,979.71 : x
  2. Step 2: Convert to fraction form
    22,051.19/30,430.86 = 11,979.71/x
  3. Step 3: Cross multiply
    22,051.19x = 30,430.86 × 11,979.71
  4. Step 4: Simplify right side
    22,051.19x = 364,552,953.93
  5. Step 5: Solve for x
    x = 364,552,953.93/22,051.19
  6. Step 6: Final answer
    x = 16,532.12

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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.