Home / 21,077.64-29,087.73-11,646.81

Finding the Fourth Proportional to 21,077.64, 29,087.73 and 11,646.81

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Solution

The fourth proportional to 21,077.64, 29,087.73 and 11,646.81 is: 16,072.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.64 : 29,087.73 = 11,646.81 : x
  2. Step 2: Convert to fraction form
    21,077.64/29,087.73 = 11,646.81/x
  3. Step 3: Cross multiply
    21,077.64x = 29,087.73 × 11,646.81
  4. Step 4: Simplify right side
    21,077.64x = 338,779,264.64
  5. Step 5: Solve for x
    x = 338,779,264.64/21,077.64
  6. Step 6: Final answer
    x = 16,072.92

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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.