Home / 24,720.88-34,114.85-13,390.40

Finding the Fourth Proportional to 24,720.88, 34,114.85 and 13,390.40

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Solution

The fourth proportional to 24,720.88, 34,114.85 and 13,390.40 is: 18,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,720.88 : 34,114.85 = 13,390.40 : x
  2. Step 2: Convert to fraction form
    24,720.88/34,114.85 = 13,390.40/x
  3. Step 3: Cross multiply
    24,720.88x = 34,114.85 × 13,390.40
  4. Step 4: Simplify right side
    24,720.88x = 456,811,487.44
  5. Step 5: Solve for x
    x = 456,811,487.44/24,720.88
  6. Step 6: Final answer
    x = 18,478.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.