Home / 29,688.48-40,944.96-20,106.72

Finding the Fourth Proportional to 29,688.48, 40,944.96 and 20,106.72

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Solution

The fourth proportional to 29,688.48, 40,944.96 and 20,106.72 is: 27,730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.48 : 40,944.96 = 20,106.72 : x
  2. Step 2: Convert to fraction form
    29,688.48/40,944.96 = 20,106.72/x
  3. Step 3: Cross multiply
    29,688.48x = 40,944.96 × 20,106.72
  4. Step 4: Simplify right side
    29,688.48x = 823,268,846.13
  5. Step 5: Solve for x
    x = 823,268,846.13/29,688.48
  6. Step 6: Final answer
    x = 27,730.25

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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.