Home / 20,298.43-28,011.74-11,345.93

Finding the Fourth Proportional to 20,298.43, 28,011.74 and 11,345.93

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Solution

The fourth proportional to 20,298.43, 28,011.74 and 11,345.93 is: 15,657.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.43 : 28,011.74 = 11,345.93 : x
  2. Step 2: Convert to fraction form
    20,298.43/28,011.74 = 11,345.93/x
  3. Step 3: Cross multiply
    20,298.43x = 28,011.74 × 11,345.93
  4. Step 4: Simplify right side
    20,298.43x = 317,819,241.22
  5. Step 5: Solve for x
    x = 317,819,241.22/20,298.43
  6. Step 6: Final answer
    x = 15,657.33

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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.