Home / 19,929.79-29,839.32-10,039.08

Finding the Fourth Proportional to 19,929.79, 29,839.32 and 10,039.08

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Solution

The fourth proportional to 19,929.79, 29,839.32 and 10,039.08 is: 15,030.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.79 : 29,839.32 = 10,039.08 : x
  2. Step 2: Convert to fraction form
    19,929.79/29,839.32 = 10,039.08/x
  3. Step 3: Cross multiply
    19,929.79x = 29,839.32 × 10,039.08
  4. Step 4: Simplify right side
    19,929.79x = 299,559,320.63
  5. Step 5: Solve for x
    x = 299,559,320.63/19,929.79
  6. Step 6: Final answer
    x = 15,030.73

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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.