Home / 19,666.81-27,159.42-16,817.68

Finding the Fourth Proportional to 19,666.81, 27,159.42 and 16,817.68

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Solution

The fourth proportional to 19,666.81, 27,159.42 and 16,817.68 is: 23,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.81 : 27,159.42 = 16,817.68 : x
  2. Step 2: Convert to fraction form
    19,666.81/27,159.42 = 16,817.68/x
  3. Step 3: Cross multiply
    19,666.81x = 27,159.42 × 16,817.68
  4. Step 4: Simplify right side
    19,666.81x = 456,758,434.55
  5. Step 5: Solve for x
    x = 456,758,434.55/19,666.81
  6. Step 6: Final answer
    x = 23,224.84

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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.