Home / 20,792.04-31,187.04-7,643.58

Finding the Fourth Proportional to 20,792.04, 31,187.04 and 7,643.58

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Solution

The fourth proportional to 20,792.04, 31,187.04 and 7,643.58 is: 11,465.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.04 : 31,187.04 = 7,643.58 : x
  2. Step 2: Convert to fraction form
    20,792.04/31,187.04 = 7,643.58/x
  3. Step 3: Cross multiply
    20,792.04x = 31,187.04 × 7,643.58
  4. Step 4: Simplify right side
    20,792.04x = 238,380,635.20
  5. Step 5: Solve for x
    x = 238,380,635.20/20,792.04
  6. Step 6: Final answer
    x = 11,465.00

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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.