Home / 21,703.90-29,952-12,272.26

Finding the Fourth Proportional to 21,703.90, 29,952 and 12,272.26

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Solution

The fourth proportional to 21,703.90, 29,952 and 12,272.26 is: 16,936.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.90 : 29,952 = 12,272.26 : x
  2. Step 2: Convert to fraction form
    21,703.90/29,952 = 12,272.26/x
  3. Step 3: Cross multiply
    21,703.90x = 29,952 × 12,272.26
  4. Step 4: Simplify right side
    21,703.90x = 367,578,731.52
  5. Step 5: Solve for x
    x = 367,578,731.52/21,703.90
  6. Step 6: Final answer
    x = 16,936.07

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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.