Home / 30,691.20-46,004.40-17,515.20

Finding the Fourth Proportional to 30,691.20, 46,004.40 and 17,515.20

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Solution

The fourth proportional to 30,691.20, 46,004.40 and 17,515.20 is: 26,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,691.20 : 46,004.40 = 17,515.20 : x
  2. Step 2: Convert to fraction form
    30,691.20/46,004.40 = 17,515.20/x
  3. Step 3: Cross multiply
    30,691.20x = 46,004.40 × 17,515.20
  4. Step 4: Simplify right side
    30,691.20x = 805,776,266.88
  5. Step 5: Solve for x
    x = 805,776,266.88/30,691.20
  6. Step 6: Final answer
    x = 26,254.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.