Home / 28,365.48-39,141-16,427.21

Finding the Fourth Proportional to 28,365.48, 39,141 and 16,427.21

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Solution

The fourth proportional to 28,365.48, 39,141 and 16,427.21 is: 22,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.48 : 39,141 = 16,427.21 : x
  2. Step 2: Convert to fraction form
    28,365.48/39,141 = 16,427.21/x
  3. Step 3: Cross multiply
    28,365.48x = 39,141 × 16,427.21
  4. Step 4: Simplify right side
    28,365.48x = 642,977,230.91
  5. Step 5: Solve for x
    x = 642,977,230.91/28,365.48
  6. Step 6: Final answer
    x = 22,667.60

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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.