Home / 28,615.61-39,489.40-16,040.36

Finding the Fourth Proportional to 28,615.61, 39,489.40 and 16,040.36

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Solution

The fourth proportional to 28,615.61, 39,489.40 and 16,040.36 is: 22,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.61 : 39,489.40 = 16,040.36 : x
  2. Step 2: Convert to fraction form
    28,615.61/39,489.40 = 16,040.36/x
  3. Step 3: Cross multiply
    28,615.61x = 39,489.40 × 16,040.36
  4. Step 4: Simplify right side
    28,615.61x = 633,424,192.18
  5. Step 5: Solve for x
    x = 633,424,192.18/28,615.61
  6. Step 6: Final answer
    x = 22,135.62

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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.