Home / 28,365.48-39,142.50-16,427.88

Finding the Fourth Proportional to 28,365.48, 39,142.50 and 16,427.88

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Solution

The fourth proportional to 28,365.48, 39,142.50 and 16,427.88 is: 22,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.48 : 39,142.50 = 16,427.88 : x
  2. Step 2: Convert to fraction form
    28,365.48/39,142.50 = 16,427.88/x
  3. Step 3: Cross multiply
    28,365.48x = 39,142.50 × 16,427.88
  4. Step 4: Simplify right side
    28,365.48x = 643,028,292.90
  5. Step 5: Solve for x
    x = 643,028,292.90/28,365.48
  6. Step 6: Final answer
    x = 22,669.40

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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.