Home / 19,890.16-29,831.40-6,037.36

Finding the Fourth Proportional to 19,890.16, 29,831.40 and 6,037.36

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Solution

The fourth proportional to 19,890.16, 29,831.40 and 6,037.36 is: 9,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.16 : 29,831.40 = 6,037.36 : x
  2. Step 2: Convert to fraction form
    19,890.16/29,831.40 = 6,037.36/x
  3. Step 3: Cross multiply
    19,890.16x = 29,831.40 × 6,037.36
  4. Step 4: Simplify right side
    19,890.16x = 180,102,901.10
  5. Step 5: Solve for x
    x = 180,102,901.10/19,890.16
  6. Step 6: Final answer
    x = 9,054.87

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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.