Home / 30,374.50-45,585.24-21,079.75

Finding the Fourth Proportional to 30,374.50, 45,585.24 and 21,079.75

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Solution

The fourth proportional to 30,374.50, 45,585.24 and 21,079.75 is: 31,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.50 : 45,585.24 = 21,079.75 : x
  2. Step 2: Convert to fraction form
    30,374.50/45,585.24 = 21,079.75/x
  3. Step 3: Cross multiply
    30,374.50x = 45,585.24 × 21,079.75
  4. Step 4: Simplify right side
    30,374.50x = 960,925,462.89
  5. Step 5: Solve for x
    x = 960,925,462.89/30,374.50
  6. Step 6: Final answer
    x = 31,635.93

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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.