Home / 20,193.04-27,869.16-12,762.64

Finding the Fourth Proportional to 20,193.04, 27,869.16 and 12,762.64

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Solution

The fourth proportional to 20,193.04, 27,869.16 and 12,762.64 is: 17,614.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.04 : 27,869.16 = 12,762.64 : x
  2. Step 2: Convert to fraction form
    20,193.04/27,869.16 = 12,762.64/x
  3. Step 3: Cross multiply
    20,193.04x = 27,869.16 × 12,762.64
  4. Step 4: Simplify right side
    20,193.04x = 355,684,056.18
  5. Step 5: Solve for x
    x = 355,684,056.18/20,193.04
  6. Step 6: Final answer
    x = 17,614.19

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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.