Home / 33,070.78-45,632.89-18,920.98

Finding the Fourth Proportional to 33,070.78, 45,632.89 and 18,920.98

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Solution

The fourth proportional to 33,070.78, 45,632.89 and 18,920.98 is: 26,108.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,070.78 : 45,632.89 = 18,920.98 : x
  2. Step 2: Convert to fraction form
    33,070.78/45,632.89 = 18,920.98/x
  3. Step 3: Cross multiply
    33,070.78x = 45,632.89 × 18,920.98
  4. Step 4: Simplify right side
    33,070.78x = 863,418,999.03
  5. Step 5: Solve for x
    x = 863,418,999.03/33,070.78
  6. Step 6: Final answer
    x = 26,108.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.