Home / 20,323.05-28,044.51-11,369.01

Finding the Fourth Proportional to 20,323.05, 28,044.51 and 11,369.01

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Solution

The fourth proportional to 20,323.05, 28,044.51 and 11,369.01 is: 15,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.05 : 28,044.51 = 11,369.01 : x
  2. Step 2: Convert to fraction form
    20,323.05/28,044.51 = 11,369.01/x
  3. Step 3: Cross multiply
    20,323.05x = 28,044.51 × 11,369.01
  4. Step 4: Simplify right side
    20,323.05x = 318,838,314.64
  5. Step 5: Solve for x
    x = 318,838,314.64/20,323.05
  6. Step 6: Final answer
    x = 15,688.51

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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.