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Finding the Fourth Proportional to 30,488.91, 45,695.24 and 14,690.98

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Solution

The fourth proportional to 30,488.91, 45,695.24 and 14,690.98 is: 22,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.91 : 45,695.24 = 14,690.98 : x
  2. Step 2: Convert to fraction form
    30,488.91/45,695.24 = 14,690.98/x
  3. Step 3: Cross multiply
    30,488.91x = 45,695.24 × 14,690.98
  4. Step 4: Simplify right side
    30,488.91x = 671,307,856.94
  5. Step 5: Solve for x
    x = 671,307,856.94/30,488.91
  6. Step 6: Final answer
    x = 22,018.10

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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.