Home / 21,167.27-29,210.63-11,607.69

Finding the Fourth Proportional to 21,167.27, 29,210.63 and 11,607.69

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Solution

The fourth proportional to 21,167.27, 29,210.63 and 11,607.69 is: 16,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.27 : 29,210.63 = 11,607.69 : x
  2. Step 2: Convert to fraction form
    21,167.27/29,210.63 = 11,607.69/x
  3. Step 3: Cross multiply
    21,167.27x = 29,210.63 × 11,607.69
  4. Step 4: Simplify right side
    21,167.27x = 339,067,879.71
  5. Step 5: Solve for x
    x = 339,067,879.71/21,167.27
  6. Step 6: Final answer
    x = 16,018.50

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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.