Home / 40,519.30-60,783.80-12,435.68

Finding the Fourth Proportional to 40,519.30, 60,783.80 and 12,435.68

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Solution

The fourth proportional to 40,519.30, 60,783.80 and 12,435.68 is: 18,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,519.30 : 60,783.80 = 12,435.68 : x
  2. Step 2: Convert to fraction form
    40,519.30/60,783.80 = 12,435.68/x
  3. Step 3: Cross multiply
    40,519.30x = 60,783.80 × 12,435.68
  4. Step 4: Simplify right side
    40,519.30x = 755,887,831.66
  5. Step 5: Solve for x
    x = 755,887,831.66/40,519.30
  6. Step 6: Final answer
    x = 18,655.01

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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.