Home / 20,567.64-28,386.16-11,836.12

Finding the Fourth Proportional to 20,567.64, 28,386.16 and 11,836.12

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Solution

The fourth proportional to 20,567.64, 28,386.16 and 11,836.12 is: 16,335.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.64 : 28,386.16 = 11,836.12 : x
  2. Step 2: Convert to fraction form
    20,567.64/28,386.16 = 11,836.12/x
  3. Step 3: Cross multiply
    20,567.64x = 28,386.16 × 11,836.12
  4. Step 4: Simplify right side
    20,567.64x = 335,982,165.83
  5. Step 5: Solve for x
    x = 335,982,165.83/20,567.64
  6. Step 6: Final answer
    x = 16,335.47

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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.