Home / 21,036.64-29,030.16-11,476.12

Finding the Fourth Proportional to 21,036.64, 29,030.16 and 11,476.12

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Solution

The fourth proportional to 21,036.64, 29,030.16 and 11,476.12 is: 15,836.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.64 : 29,030.16 = 11,476.12 : x
  2. Step 2: Convert to fraction form
    21,036.64/29,030.16 = 11,476.12/x
  3. Step 3: Cross multiply
    21,036.64x = 29,030.16 × 11,476.12
  4. Step 4: Simplify right side
    21,036.64x = 333,153,599.78
  5. Step 5: Solve for x
    x = 333,153,599.78/21,036.64
  6. Step 6: Final answer
    x = 15,836.83

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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.