Home / 40,129.56-55,378.89-22,225.32

Finding the Fourth Proportional to 40,129.56, 55,378.89 and 22,225.32

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Solution

The fourth proportional to 40,129.56, 55,378.89 and 22,225.32 is: 30,671.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.56 : 55,378.89 = 22,225.32 : x
  2. Step 2: Convert to fraction form
    40,129.56/55,378.89 = 22,225.32/x
  3. Step 3: Cross multiply
    40,129.56x = 55,378.89 × 22,225.32
  4. Step 4: Simplify right side
    40,129.56x = 1,230,813,551.49
  5. Step 5: Solve for x
    x = 1,230,813,551.49/40,129.56
  6. Step 6: Final answer
    x = 30,671.00

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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.