Home / 20,088.87-27,722.65-11,136.48

Finding the Fourth Proportional to 20,088.87, 27,722.65 and 11,136.48

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Solution

The fourth proportional to 20,088.87, 27,722.65 and 11,136.48 is: 15,368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.87 : 27,722.65 = 11,136.48 : x
  2. Step 2: Convert to fraction form
    20,088.87/27,722.65 = 11,136.48/x
  3. Step 3: Cross multiply
    20,088.87x = 27,722.65 × 11,136.48
  4. Step 4: Simplify right side
    20,088.87x = 308,732,737.27
  5. Step 5: Solve for x
    x = 308,732,737.27/20,088.87
  6. Step 6: Final answer
    x = 15,368.35

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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.