Home / 19,877.23-29,797.30-6,720.40

Finding the Fourth Proportional to 19,877.23, 29,797.30 and 6,720.40

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Solution

The fourth proportional to 19,877.23, 29,797.30 and 6,720.40 is: 10,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.23 : 29,797.30 = 6,720.40 : x
  2. Step 2: Convert to fraction form
    19,877.23/29,797.30 = 6,720.40/x
  3. Step 3: Cross multiply
    19,877.23x = 29,797.30 × 6,720.40
  4. Step 4: Simplify right side
    19,877.23x = 200,249,820.57
  5. Step 5: Solve for x
    x = 200,249,820.57/19,877.23
  6. Step 6: Final answer
    x = 10,074.33

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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.