Home / 19,812.40-29,718.64-5,021.32

Finding the Fourth Proportional to 19,812.40, 29,718.64 and 5,021.32

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Solution

The fourth proportional to 19,812.40, 29,718.64 and 5,021.32 is: 7,531.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.40 : 29,718.64 = 5,021.32 : x
  2. Step 2: Convert to fraction form
    19,812.40/29,718.64 = 5,021.32/x
  3. Step 3: Cross multiply
    19,812.40x = 29,718.64 × 5,021.32
  4. Step 4: Simplify right side
    19,812.40x = 149,226,801.40
  5. Step 5: Solve for x
    x = 149,226,801.40/19,812.40
  6. Step 6: Final answer
    x = 7,531.99

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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.