Home / 21,703.26-29,955.87-12,277.38

Finding the Fourth Proportional to 21,703.26, 29,955.87 and 12,277.38

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Solution

The fourth proportional to 21,703.26, 29,955.87 and 12,277.38 is: 16,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.26 : 29,955.87 = 12,277.38 : x
  2. Step 2: Convert to fraction form
    21,703.26/29,955.87 = 12,277.38/x
  3. Step 3: Cross multiply
    21,703.26x = 29,955.87 × 12,277.38
  4. Step 4: Simplify right side
    21,703.26x = 367,779,599.22
  5. Step 5: Solve for x
    x = 367,779,599.22/21,703.26
  6. Step 6: Final answer
    x = 16,945.82

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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.