Home / 26,313.80-36,313.11-15,703.20

Finding the Fourth Proportional to 26,313.80, 36,313.11 and 15,703.20

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Solution

The fourth proportional to 26,313.80, 36,313.11 and 15,703.20 is: 21,670.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,313.80 : 36,313.11 = 15,703.20 : x
  2. Step 2: Convert to fraction form
    26,313.80/36,313.11 = 15,703.20/x
  3. Step 3: Cross multiply
    26,313.80x = 36,313.11 × 15,703.20
  4. Step 4: Simplify right side
    26,313.80x = 570,232,028.95
  5. Step 5: Solve for x
    x = 570,232,028.95/26,313.80
  6. Step 6: Final answer
    x = 21,670.46

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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.