Home / 19,235.30-28,831.35-9,871.70

Finding the Fourth Proportional to 19,235.30, 28,831.35 and 9,871.70

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Solution

The fourth proportional to 19,235.30, 28,831.35 and 9,871.70 is: 14,796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,235.30 : 28,831.35 = 9,871.70 : x
  2. Step 2: Convert to fraction form
    19,235.30/28,831.35 = 9,871.70/x
  3. Step 3: Cross multiply
    19,235.30x = 28,831.35 × 9,871.70
  4. Step 4: Simplify right side
    19,235.30x = 284,614,437.80
  5. Step 5: Solve for x
    x = 284,614,437.80/19,235.30
  6. Step 6: Final answer
    x = 14,796.46

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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.