Home / 40,931.96-56,455.87-28,189.19

Finding the Fourth Proportional to 40,931.96, 56,455.87 and 28,189.19

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Solution

The fourth proportional to 40,931.96, 56,455.87 and 28,189.19 is: 38,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,931.96 : 56,455.87 = 28,189.19 : x
  2. Step 2: Convert to fraction form
    40,931.96/56,455.87 = 28,189.19/x
  3. Step 3: Cross multiply
    40,931.96x = 56,455.87 × 28,189.19
  4. Step 4: Simplify right side
    40,931.96x = 1,591,445,246.05
  5. Step 5: Solve for x
    x = 1,591,445,246.05/40,931.96
  6. Step 6: Final answer
    x = 38,880.26

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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.