Home / 29,671.68-40,932-18,485.76

Finding the Fourth Proportional to 29,671.68, 40,932 and 18,485.76

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Solution

The fourth proportional to 29,671.68, 40,932 and 18,485.76 is: 25,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.68 : 40,932 = 18,485.76 : x
  2. Step 2: Convert to fraction form
    29,671.68/40,932 = 18,485.76/x
  3. Step 3: Cross multiply
    29,671.68x = 40,932 × 18,485.76
  4. Step 4: Simplify right side
    29,671.68x = 756,659,128.32
  5. Step 5: Solve for x
    x = 756,659,128.32/29,671.68
  6. Step 6: Final answer
    x = 25,501.05

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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.