Home / 26,661.18-36,788.22-15,331.32

Finding the Fourth Proportional to 26,661.18, 36,788.22 and 15,331.32

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Solution

The fourth proportional to 26,661.18, 36,788.22 and 15,331.32 is: 21,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,661.18 : 36,788.22 = 15,331.32 : x
  2. Step 2: Convert to fraction form
    26,661.18/36,788.22 = 15,331.32/x
  3. Step 3: Cross multiply
    26,661.18x = 36,788.22 × 15,331.32
  4. Step 4: Simplify right side
    26,661.18x = 564,011,973.05
  5. Step 5: Solve for x
    x = 564,011,973.05/26,661.18
  6. Step 6: Final answer
    x = 21,154.80

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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.