Home / 40,319.15-55,642.28-22,415.99

Finding the Fourth Proportional to 40,319.15, 55,642.28 and 22,415.99

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Solution

The fourth proportional to 40,319.15, 55,642.28 and 22,415.99 is: 30,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,319.15 : 55,642.28 = 22,415.99 : x
  2. Step 2: Convert to fraction form
    40,319.15/55,642.28 = 22,415.99/x
  3. Step 3: Cross multiply
    40,319.15x = 55,642.28 × 22,415.99
  4. Step 4: Simplify right side
    40,319.15x = 1,247,276,401.77
  5. Step 5: Solve for x
    x = 1,247,276,401.77/40,319.15
  6. Step 6: Final answer
    x = 30,935.09

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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.