Home / 30,098.60-45,217.08-21,234.32

Finding the Fourth Proportional to 30,098.60, 45,217.08 and 21,234.32

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Solution

The fourth proportional to 30,098.60, 45,217.08 and 21,234.32 is: 31,900.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,098.60 : 45,217.08 = 21,234.32 : x
  2. Step 2: Convert to fraction form
    30,098.60/45,217.08 = 21,234.32/x
  3. Step 3: Cross multiply
    30,098.60x = 45,217.08 × 21,234.32
  4. Step 4: Simplify right side
    30,098.60x = 960,153,946.19
  5. Step 5: Solve for x
    x = 960,153,946.19/30,098.60
  6. Step 6: Final answer
    x = 31,900.29

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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.