Home / 28,703.31-39,609.05-16,127.25

Finding the Fourth Proportional to 28,703.31, 39,609.05 and 16,127.25

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Solution

The fourth proportional to 28,703.31, 39,609.05 and 16,127.25 is: 22,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.31 : 39,609.05 = 16,127.25 : x
  2. Step 2: Convert to fraction form
    28,703.31/39,609.05 = 16,127.25/x
  3. Step 3: Cross multiply
    28,703.31x = 39,609.05 × 16,127.25
  4. Step 4: Simplify right side
    28,703.31x = 638,784,970.98
  5. Step 5: Solve for x
    x = 638,784,970.98/28,703.31
  6. Step 6: Final answer
    x = 22,254.75

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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.