Home / 20,599.18-28,415.91-12,535.30

Finding the Fourth Proportional to 20,599.18, 28,415.91 and 12,535.30

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Solution

The fourth proportional to 20,599.18, 28,415.91 and 12,535.30 is: 17,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.18 : 28,415.91 = 12,535.30 : x
  2. Step 2: Convert to fraction form
    20,599.18/28,415.91 = 12,535.30/x
  3. Step 3: Cross multiply
    20,599.18x = 28,415.91 × 12,535.30
  4. Step 4: Simplify right side
    20,599.18x = 356,201,956.62
  5. Step 5: Solve for x
    x = 356,201,956.62/20,599.18
  6. Step 6: Final answer
    x = 17,292.05

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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.