Home / 38,890.84-58,324.12-12,590.16

Finding the Fourth Proportional to 38,890.84, 58,324.12 and 12,590.16

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Solution

The fourth proportional to 38,890.84, 58,324.12 and 12,590.16 is: 18,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,890.84 : 58,324.12 = 12,590.16 : x
  2. Step 2: Convert to fraction form
    38,890.84/58,324.12 = 12,590.16/x
  3. Step 3: Cross multiply
    38,890.84x = 58,324.12 × 12,590.16
  4. Step 4: Simplify right side
    38,890.84x = 734,310,002.66
  5. Step 5: Solve for x
    x = 734,310,002.66/38,890.84
  6. Step 6: Final answer
    x = 18,881.31

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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.