Home / 30,760.02-42,450.25-17,148.96

Finding the Fourth Proportional to 30,760.02, 42,450.25 and 17,148.96

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Solution

The fourth proportional to 30,760.02, 42,450.25 and 17,148.96 is: 23,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,760.02 : 42,450.25 = 17,148.96 : x
  2. Step 2: Convert to fraction form
    30,760.02/42,450.25 = 17,148.96/x
  3. Step 3: Cross multiply
    30,760.02x = 42,450.25 × 17,148.96
  4. Step 4: Simplify right side
    30,760.02x = 727,977,639.24
  5. Step 5: Solve for x
    x = 727,977,639.24/30,760.02
  6. Step 6: Final answer
    x = 23,666.36

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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.