Home / 21,336.31-29,444.12-11,904.67

Finding the Fourth Proportional to 21,336.31, 29,444.12 and 11,904.67

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Solution

The fourth proportional to 21,336.31, 29,444.12 and 11,904.67 is: 16,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.31 : 29,444.12 = 11,904.67 : x
  2. Step 2: Convert to fraction form
    21,336.31/29,444.12 = 11,904.67/x
  3. Step 3: Cross multiply
    21,336.31x = 29,444.12 × 11,904.67
  4. Step 4: Simplify right side
    21,336.31x = 350,522,532.04
  5. Step 5: Solve for x
    x = 350,522,532.04/21,336.31
  6. Step 6: Final answer
    x = 16,428.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.