Home / 17,720.61-24,420.79-12,676.07

Finding the Fourth Proportional to 17,720.61, 24,420.79 and 12,676.07

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Solution

The fourth proportional to 17,720.61, 24,420.79 and 12,676.07 is: 17,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.61 : 24,420.79 = 12,676.07 : x
  2. Step 2: Convert to fraction form
    17,720.61/24,420.79 = 12,676.07/x
  3. Step 3: Cross multiply
    17,720.61x = 24,420.79 × 12,676.07
  4. Step 4: Simplify right side
    17,720.61x = 309,559,643.50
  5. Step 5: Solve for x
    x = 309,559,643.50/17,720.61
  6. Step 6: Final answer
    x = 17,468.90

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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.