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Finding the Fourth Proportional to 28,451, 42,701.88 and 14,953.16

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Solution

The fourth proportional to 28,451, 42,701.88 and 14,953.16 is: 22,443.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451 : 42,701.88 = 14,953.16 : x
  2. Step 2: Convert to fraction form
    28,451/42,701.88 = 14,953.16/x
  3. Step 3: Cross multiply
    28,451x = 42,701.88 × 14,953.16
  4. Step 4: Simplify right side
    28,451x = 638,528,043.94
  5. Step 5: Solve for x
    x = 638,528,043.94/28,451
  6. Step 6: Final answer
    x = 22,443.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.