Home / 38,870.86-58,311.04-13,913.54

Finding the Fourth Proportional to 38,870.86, 58,311.04 and 13,913.54

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Solution

The fourth proportional to 38,870.86, 58,311.04 and 13,913.54 is: 20,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,870.86 : 58,311.04 = 13,913.54 : x
  2. Step 2: Convert to fraction form
    38,870.86/58,311.04 = 13,913.54/x
  3. Step 3: Cross multiply
    38,870.86x = 58,311.04 × 13,913.54
  4. Step 4: Simplify right side
    38,870.86x = 811,312,987.48
  5. Step 5: Solve for x
    x = 811,312,987.48/38,870.86
  6. Step 6: Final answer
    x = 20,872.01

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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.