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Finding the Fourth Proportional to 37,689.98, 56,536.17 and 18,959.78

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Solution

The fourth proportional to 37,689.98, 56,536.17 and 18,959.78 is: 28,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,689.98 : 56,536.17 = 18,959.78 : x
  2. Step 2: Convert to fraction form
    37,689.98/56,536.17 = 18,959.78/x
  3. Step 3: Cross multiply
    37,689.98x = 56,536.17 × 18,959.78
  4. Step 4: Simplify right side
    37,689.98x = 1,071,913,345.24
  5. Step 5: Solve for x
    x = 1,071,913,345.24/37,689.98
  6. Step 6: Final answer
    x = 28,440.27

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1.5x scale

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.