Home / 21,216.18-31,828.14-9,369.93

Finding the Fourth Proportional to 21,216.18, 31,828.14 and 9,369.93

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Solution

The fourth proportional to 21,216.18, 31,828.14 and 9,369.93 is: 14,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216.18 : 31,828.14 = 9,369.93 : x
  2. Step 2: Convert to fraction form
    21,216.18/31,828.14 = 9,369.93/x
  3. Step 3: Cross multiply
    21,216.18x = 31,828.14 × 9,369.93
  4. Step 4: Simplify right side
    21,216.18x = 298,227,384.15
  5. Step 5: Solve for x
    x = 298,227,384.15/21,216.18
  6. Step 6: Final answer
    x = 14,056.60

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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.