Home / 20,598.32-28,422.56-11,645.36

Finding the Fourth Proportional to 20,598.32, 28,422.56 and 11,645.36

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Solution

The fourth proportional to 20,598.32, 28,422.56 and 11,645.36 is: 16,068.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.32 : 28,422.56 = 11,645.36 : x
  2. Step 2: Convert to fraction form
    20,598.32/28,422.56 = 11,645.36/x
  3. Step 3: Cross multiply
    20,598.32x = 28,422.56 × 11,645.36
  4. Step 4: Simplify right side
    20,598.32x = 330,990,943.32
  5. Step 5: Solve for x
    x = 330,990,943.32/20,598.32
  6. Step 6: Final answer
    x = 16,068.83

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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.