Home / 19,769.40-29,655.18-6,620.58

Finding the Fourth Proportional to 19,769.40, 29,655.18 and 6,620.58

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Solution

The fourth proportional to 19,769.40, 29,655.18 and 6,620.58 is: 9,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.40 : 29,655.18 = 6,620.58 : x
  2. Step 2: Convert to fraction form
    19,769.40/29,655.18 = 6,620.58/x
  3. Step 3: Cross multiply
    19,769.40x = 29,655.18 × 6,620.58
  4. Step 4: Simplify right side
    19,769.40x = 196,334,491.60
  5. Step 5: Solve for x
    x = 196,334,491.60/19,769.40
  6. Step 6: Final answer
    x = 9,931.23

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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.