Home / 39,873.81-59,792.93-21,149.58

Finding the Fourth Proportional to 39,873.81, 59,792.93 and 21,149.58

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Solution

The fourth proportional to 39,873.81, 59,792.93 and 21,149.58 is: 31,714.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.81 : 59,792.93 = 21,149.58 : x
  2. Step 2: Convert to fraction form
    39,873.81/59,792.93 = 21,149.58/x
  3. Step 3: Cross multiply
    39,873.81x = 59,792.93 × 21,149.58
  4. Step 4: Simplify right side
    39,873.81x = 1,264,595,409.34
  5. Step 5: Solve for x
    x = 1,264,595,409.34/39,873.81
  6. Step 6: Final answer
    x = 31,714.94

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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.