Home / 26,397.11-36,420.37-15,784.70

Finding the Fourth Proportional to 26,397.11, 36,420.37 and 15,784.70

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Solution

The fourth proportional to 26,397.11, 36,420.37 and 15,784.70 is: 21,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,397.11 : 36,420.37 = 15,784.70 : x
  2. Step 2: Convert to fraction form
    26,397.11/36,420.37 = 15,784.70/x
  3. Step 3: Cross multiply
    26,397.11x = 36,420.37 × 15,784.70
  4. Step 4: Simplify right side
    26,397.11x = 574,884,392.78
  5. Step 5: Solve for x
    x = 574,884,392.78/26,397.11
  6. Step 6: Final answer
    x = 21,778.31

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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.