Home / 28,536.72-42,721.80-16,654.08

Finding the Fourth Proportional to 28,536.72, 42,721.80 and 16,654.08

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Solution

The fourth proportional to 28,536.72, 42,721.80 and 16,654.08 is: 24,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.72 : 42,721.80 = 16,654.08 : x
  2. Step 2: Convert to fraction form
    28,536.72/42,721.80 = 16,654.08/x
  3. Step 3: Cross multiply
    28,536.72x = 42,721.80 × 16,654.08
  4. Step 4: Simplify right side
    28,536.72x = 711,492,274.94
  5. Step 5: Solve for x
    x = 711,492,274.94/28,536.72
  6. Step 6: Final answer
    x = 24,932.52

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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.