Home / 20,647.32-28,505.14-13,594.26

Finding the Fourth Proportional to 20,647.32, 28,505.14 and 13,594.26

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Solution

The fourth proportional to 20,647.32, 28,505.14 and 13,594.26 is: 18,767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.32 : 28,505.14 = 13,594.26 : x
  2. Step 2: Convert to fraction form
    20,647.32/28,505.14 = 13,594.26/x
  3. Step 3: Cross multiply
    20,647.32x = 28,505.14 × 13,594.26
  4. Step 4: Simplify right side
    20,647.32x = 387,506,284.50
  5. Step 5: Solve for x
    x = 387,506,284.50/20,647.32
  6. Step 6: Final answer
    x = 18,767.87

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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.