Home / 30,238.76-45,298.26-20,727.68

Finding the Fourth Proportional to 30,238.76, 45,298.26 and 20,727.68

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Solution

The fourth proportional to 30,238.76, 45,298.26 and 20,727.68 is: 31,050.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.76 : 45,298.26 = 20,727.68 : x
  2. Step 2: Convert to fraction form
    30,238.76/45,298.26 = 20,727.68/x
  3. Step 3: Cross multiply
    30,238.76x = 45,298.26 × 20,727.68
  4. Step 4: Simplify right side
    30,238.76x = 938,927,611.35
  5. Step 5: Solve for x
    x = 938,927,611.35/30,238.76
  6. Step 6: Final answer
    x = 31,050.46

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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.