Home / 20,763.32-31,157.43-7,617.02

Finding the Fourth Proportional to 20,763.32, 31,157.43 and 7,617.02

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Solution

The fourth proportional to 20,763.32, 31,157.43 and 7,617.02 is: 11,430.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.32 : 31,157.43 = 7,617.02 : x
  2. Step 2: Convert to fraction form
    20,763.32/31,157.43 = 7,617.02/x
  3. Step 3: Cross multiply
    20,763.32x = 31,157.43 × 7,617.02
  4. Step 4: Simplify right side
    20,763.32x = 237,326,573.59
  5. Step 5: Solve for x
    x = 237,326,573.59/20,763.32
  6. Step 6: Final answer
    x = 11,430.09

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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.