Home / 20,298.51-28,009.26-11,344.91

Finding the Fourth Proportional to 20,298.51, 28,009.26 and 11,344.91

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Solution

The fourth proportional to 20,298.51, 28,009.26 and 11,344.91 is: 15,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.51 : 28,009.26 = 11,344.91 : x
  2. Step 2: Convert to fraction form
    20,298.51/28,009.26 = 11,344.91/x
  3. Step 3: Cross multiply
    20,298.51x = 28,009.26 × 11,344.91
  4. Step 4: Simplify right side
    20,298.51x = 317,762,393.82
  5. Step 5: Solve for x
    x = 317,762,393.82/20,298.51
  6. Step 6: Final answer
    x = 15,654.47

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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.