Home / 28,641.60-39,516.47-16,540.53

Finding the Fourth Proportional to 28,641.60, 39,516.47 and 16,540.53

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Solution

The fourth proportional to 28,641.60, 39,516.47 and 16,540.53 is: 22,820.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,641.60 : 39,516.47 = 16,540.53 : x
  2. Step 2: Convert to fraction form
    28,641.60/39,516.47 = 16,540.53/x
  3. Step 3: Cross multiply
    28,641.60x = 39,516.47 × 16,540.53
  4. Step 4: Simplify right side
    28,641.60x = 653,623,274.83
  5. Step 5: Solve for x
    x = 653,623,274.83/28,641.60
  6. Step 6: Final answer
    x = 22,820.77

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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.