Home / 19,885.60-27,416.63-16,287.30

Finding the Fourth Proportional to 19,885.60, 27,416.63 and 16,287.30

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Solution

The fourth proportional to 19,885.60, 27,416.63 and 16,287.30 is: 22,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,885.60 : 27,416.63 = 16,287.30 : x
  2. Step 2: Convert to fraction form
    19,885.60/27,416.63 = 16,287.30/x
  3. Step 3: Cross multiply
    19,885.60x = 27,416.63 × 16,287.30
  4. Step 4: Simplify right side
    19,885.60x = 446,542,904.01
  5. Step 5: Solve for x
    x = 446,542,904.01/19,885.60
  6. Step 6: Final answer
    x = 22,455.59

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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.