Home / 19,701.18-27,197.64-15,214.86

Finding the Fourth Proportional to 19,701.18, 27,197.64 and 15,214.86

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Solution

The fourth proportional to 19,701.18, 27,197.64 and 15,214.86 is: 21,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.18 : 27,197.64 = 15,214.86 : x
  2. Step 2: Convert to fraction form
    19,701.18/27,197.64 = 15,214.86/x
  3. Step 3: Cross multiply
    19,701.18x = 27,197.64 × 15,214.86
  4. Step 4: Simplify right side
    19,701.18x = 413,808,284.93
  5. Step 5: Solve for x
    x = 413,808,284.93/19,701.18
  6. Step 6: Final answer
    x = 21,004.24

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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.