Home / 19,909.19-29,832.77-7,425.84

Finding the Fourth Proportional to 19,909.19, 29,832.77 and 7,425.84

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Solution

The fourth proportional to 19,909.19, 29,832.77 and 7,425.84 is: 11,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.19 : 29,832.77 = 7,425.84 : x
  2. Step 2: Convert to fraction form
    19,909.19/29,832.77 = 7,425.84/x
  3. Step 3: Cross multiply
    19,909.19x = 29,832.77 × 7,425.84
  4. Step 4: Simplify right side
    19,909.19x = 221,533,507.21
  5. Step 5: Solve for x
    x = 221,533,507.21/19,909.19
  6. Step 6: Final answer
    x = 11,127.20

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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.