Home / 30,260.88-45,349.63-15,438.83

Finding the Fourth Proportional to 30,260.88, 45,349.63 and 15,438.83

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Solution

The fourth proportional to 30,260.88, 45,349.63 and 15,438.83 is: 23,136.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.88 : 45,349.63 = 15,438.83 : x
  2. Step 2: Convert to fraction form
    30,260.88/45,349.63 = 15,438.83/x
  3. Step 3: Cross multiply
    30,260.88x = 45,349.63 × 15,438.83
  4. Step 4: Simplify right side
    30,260.88x = 700,145,228.13
  5. Step 5: Solve for x
    x = 700,145,228.13/30,260.88
  6. Step 6: Final answer
    x = 23,136.98

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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.