Home / 45,006.98-67,434.32-20,008.76

Finding the Fourth Proportional to 45,006.98, 67,434.32 and 20,008.76

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Solution

The fourth proportional to 45,006.98, 67,434.32 and 20,008.76 is: 29,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,006.98 : 67,434.32 = 20,008.76 : x
  2. Step 2: Convert to fraction form
    45,006.98/67,434.32 = 20,008.76/x
  3. Step 3: Cross multiply
    45,006.98x = 67,434.32 × 20,008.76
  4. Step 4: Simplify right side
    45,006.98x = 1,349,276,837.49
  5. Step 5: Solve for x
    x = 1,349,276,837.49/45,006.98
  6. Step 6: Final answer
    x = 29,979.28

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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.