Home / 20,298.84-28,012.31-11,346.34

Finding the Fourth Proportional to 20,298.84, 28,012.31 and 11,346.34

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Solution

The fourth proportional to 20,298.84, 28,012.31 and 11,346.34 is: 15,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.84 : 28,012.31 = 11,346.34 : x
  2. Step 2: Convert to fraction form
    20,298.84/28,012.31 = 11,346.34/x
  3. Step 3: Cross multiply
    20,298.84x = 28,012.31 × 11,346.34
  4. Step 4: Simplify right side
    20,298.84x = 317,837,146.79
  5. Step 5: Solve for x
    x = 317,837,146.79/20,298.84
  6. Step 6: Final answer
    x = 15,657.90

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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.