Home / 38,816.72-58,223.04-12,521.47

Finding the Fourth Proportional to 38,816.72, 58,223.04 and 12,521.47

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Solution

The fourth proportional to 38,816.72, 58,223.04 and 12,521.47 is: 18,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,816.72 : 58,223.04 = 12,521.47 : x
  2. Step 2: Convert to fraction form
    38,816.72/58,223.04 = 12,521.47/x
  3. Step 3: Cross multiply
    38,816.72x = 58,223.04 × 12,521.47
  4. Step 4: Simplify right side
    38,816.72x = 729,038,048.67
  5. Step 5: Solve for x
    x = 729,038,048.67/38,816.72
  6. Step 6: Final answer
    x = 18,781.55

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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.