Home / 38,666.70-58,018.32-21,135.96

Finding the Fourth Proportional to 38,666.70, 58,018.32 and 21,135.96

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Solution

The fourth proportional to 38,666.70, 58,018.32 and 21,135.96 is: 31,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.70 : 58,018.32 = 21,135.96 : x
  2. Step 2: Convert to fraction form
    38,666.70/58,018.32 = 21,135.96/x
  3. Step 3: Cross multiply
    38,666.70x = 58,018.32 × 21,135.96
  4. Step 4: Simplify right side
    38,666.70x = 1,226,272,890.79
  5. Step 5: Solve for x
    x = 1,226,272,890.79/38,666.70
  6. Step 6: Final answer
    x = 31,713.93

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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.