Home / 30,652.60-45,990.24-13,136.08

Finding the Fourth Proportional to 30,652.60, 45,990.24 and 13,136.08

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Solution

The fourth proportional to 30,652.60, 45,990.24 and 13,136.08 is: 19,708.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,652.60 : 45,990.24 = 13,136.08 : x
  2. Step 2: Convert to fraction form
    30,652.60/45,990.24 = 13,136.08/x
  3. Step 3: Cross multiply
    30,652.60x = 45,990.24 × 13,136.08
  4. Step 4: Simplify right side
    30,652.60x = 604,131,471.86
  5. Step 5: Solve for x
    x = 604,131,471.86/30,652.60
  6. Step 6: Final answer
    x = 19,708.98

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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.