Home / 20,160.90-27,805.95-12,592.80

Finding the Fourth Proportional to 20,160.90, 27,805.95 and 12,592.80

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Solution

The fourth proportional to 20,160.90, 27,805.95 and 12,592.80 is: 17,368.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.90 : 27,805.95 = 12,592.80 : x
  2. Step 2: Convert to fraction form
    20,160.90/27,805.95 = 12,592.80/x
  3. Step 3: Cross multiply
    20,160.90x = 27,805.95 × 12,592.80
  4. Step 4: Simplify right side
    20,160.90x = 350,154,767.16
  5. Step 5: Solve for x
    x = 350,154,767.16/20,160.90
  6. Step 6: Final answer
    x = 17,368.01

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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.