Home / 19,830.71-29,750.01-6,686.84

Finding the Fourth Proportional to 19,830.71, 29,750.01 and 6,686.84

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Solution

The fourth proportional to 19,830.71, 29,750.01 and 6,686.84 is: 10,031.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.71 : 29,750.01 = 6,686.84 : x
  2. Step 2: Convert to fraction form
    19,830.71/29,750.01 = 6,686.84/x
  3. Step 3: Cross multiply
    19,830.71x = 29,750.01 × 6,686.84
  4. Step 4: Simplify right side
    19,830.71x = 198,933,408.12
  5. Step 5: Solve for x
    x = 198,933,408.12/19,830.71
  6. Step 6: Final answer
    x = 10,031.59

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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.