Home / 42,997.11-64,490.80-14,911.98

Finding the Fourth Proportional to 42,997.11, 64,490.80 and 14,911.98

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Solution

The fourth proportional to 42,997.11, 64,490.80 and 14,911.98 is: 22,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,997.11 : 64,490.80 = 14,911.98 : x
  2. Step 2: Convert to fraction form
    42,997.11/64,490.80 = 14,911.98/x
  3. Step 3: Cross multiply
    42,997.11x = 64,490.80 × 14,911.98
  4. Step 4: Simplify right side
    42,997.11x = 961,685,519.78
  5. Step 5: Solve for x
    x = 961,685,519.78/42,997.11
  6. Step 6: Final answer
    x = 22,366.28

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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.