Home / 42,831.36-64,252.98-13,245.30

Finding the Fourth Proportional to 42,831.36, 64,252.98 and 13,245.30

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Solution

The fourth proportional to 42,831.36, 64,252.98 and 13,245.30 is: 19,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.36 : 64,252.98 = 13,245.30 : x
  2. Step 2: Convert to fraction form
    42,831.36/64,252.98 = 13,245.30/x
  3. Step 3: Cross multiply
    42,831.36x = 64,252.98 × 13,245.30
  4. Step 4: Simplify right side
    42,831.36x = 851,049,995.99
  5. Step 5: Solve for x
    x = 851,049,995.99/42,831.36
  6. Step 6: Final answer
    x = 19,869.79

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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.