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Finding the Fourth Proportional to 28,175.58, 38,881.02 and 16,240.68

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Solution

The fourth proportional to 28,175.58, 38,881.02 and 16,240.68 is: 22,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.58 : 38,881.02 = 16,240.68 : x
  2. Step 2: Convert to fraction form
    28,175.58/38,881.02 = 16,240.68/x
  3. Step 3: Cross multiply
    28,175.58x = 38,881.02 × 16,240.68
  4. Step 4: Simplify right side
    28,175.58x = 631,454,203.89
  5. Step 5: Solve for x
    x = 631,454,203.89/28,175.58
  6. Step 6: Final answer
    x = 22,411.40

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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.