Home / 20,323.31-28,044.63-11,369.16

Finding the Fourth Proportional to 20,323.31, 28,044.63 and 11,369.16

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Solution

The fourth proportional to 20,323.31, 28,044.63 and 11,369.16 is: 15,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.31 : 28,044.63 = 11,369.16 : x
  2. Step 2: Convert to fraction form
    20,323.31/28,044.63 = 11,369.16/x
  3. Step 3: Cross multiply
    20,323.31x = 28,044.63 × 11,369.16
  4. Step 4: Simplify right side
    20,323.31x = 318,843,885.61
  5. Step 5: Solve for x
    x = 318,843,885.61/20,323.31
  6. Step 6: Final answer
    x = 15,688.58

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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.