Home / 30,917.10-42,666.36-17,487.72

Finding the Fourth Proportional to 30,917.10, 42,666.36 and 17,487.72

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Solution

The fourth proportional to 30,917.10, 42,666.36 and 17,487.72 is: 24,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917.10 : 42,666.36 = 17,487.72 : x
  2. Step 2: Convert to fraction form
    30,917.10/42,666.36 = 17,487.72/x
  3. Step 3: Cross multiply
    30,917.10x = 42,666.36 × 17,487.72
  4. Step 4: Simplify right side
    30,917.10x = 746,137,357.10
  5. Step 5: Solve for x
    x = 746,137,357.10/30,917.10
  6. Step 6: Final answer
    x = 24,133.48

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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.