Home / 19,313.30-28,970.48-6,831.56

Finding the Fourth Proportional to 19,313.30, 28,970.48 and 6,831.56

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Solution

The fourth proportional to 19,313.30, 28,970.48 and 6,831.56 is: 10,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313.30 : 28,970.48 = 6,831.56 : x
  2. Step 2: Convert to fraction form
    19,313.30/28,970.48 = 6,831.56/x
  3. Step 3: Cross multiply
    19,313.30x = 28,970.48 × 6,831.56
  4. Step 4: Simplify right side
    19,313.30x = 197,913,572.35
  5. Step 5: Solve for x
    x = 197,913,572.35/19,313.30
  6. Step 6: Final answer
    x = 10,247.53

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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.