Home / 30,155.79-41,617.56-16,731.39

Finding the Fourth Proportional to 30,155.79, 41,617.56 and 16,731.39

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Solution

The fourth proportional to 30,155.79, 41,617.56 and 16,731.39 is: 23,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.79 : 41,617.56 = 16,731.39 : x
  2. Step 2: Convert to fraction form
    30,155.79/41,617.56 = 16,731.39/x
  3. Step 3: Cross multiply
    30,155.79x = 41,617.56 × 16,731.39
  4. Step 4: Simplify right side
    30,155.79x = 696,319,627.21
  5. Step 5: Solve for x
    x = 696,319,627.21/30,155.79
  6. Step 6: Final answer
    x = 23,090.74

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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.