Home / 20,298.18-28,009.32-11,346.06

Finding the Fourth Proportional to 20,298.18, 28,009.32 and 11,346.06

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Solution

The fourth proportional to 20,298.18, 28,009.32 and 11,346.06 is: 15,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.18 : 28,009.32 = 11,346.06 : x
  2. Step 2: Convert to fraction form
    20,298.18/28,009.32 = 11,346.06/x
  3. Step 3: Cross multiply
    20,298.18x = 28,009.32 × 11,346.06
  4. Step 4: Simplify right side
    20,298.18x = 317,795,425.28
  5. Step 5: Solve for x
    x = 317,795,425.28/20,298.18
  6. Step 6: Final answer
    x = 15,656.35

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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.