Home / 28,407.50-39,204.57-15,662.94

Finding the Fourth Proportional to 28,407.50, 39,204.57 and 15,662.94

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Solution

The fourth proportional to 28,407.50, 39,204.57 and 15,662.94 is: 21,616.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.50 : 39,204.57 = 15,662.94 : x
  2. Step 2: Convert to fraction form
    28,407.50/39,204.57 = 15,662.94/x
  3. Step 3: Cross multiply
    28,407.50x = 39,204.57 × 15,662.94
  4. Step 4: Simplify right side
    28,407.50x = 614,058,827.64
  5. Step 5: Solve for x
    x = 614,058,827.64/28,407.50
  6. Step 6: Final answer
    x = 21,616.08

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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.