Home / 20,159.40-27,795.78-16,807.08

Finding the Fourth Proportional to 20,159.40, 27,795.78 and 16,807.08

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Solution

The fourth proportional to 20,159.40, 27,795.78 and 16,807.08 is: 23,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.40 : 27,795.78 = 16,807.08 : x
  2. Step 2: Convert to fraction form
    20,159.40/27,795.78 = 16,807.08/x
  3. Step 3: Cross multiply
    20,159.40x = 27,795.78 × 16,807.08
  4. Step 4: Simplify right side
    20,159.40x = 467,165,898.12
  5. Step 5: Solve for x
    x = 467,165,898.12/20,159.40
  6. Step 6: Final answer
    x = 23,173.60

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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.