Home / 39,711.86-59,569.22-19,979.68

Finding the Fourth Proportional to 39,711.86, 59,569.22 and 19,979.68

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Solution

The fourth proportional to 39,711.86, 59,569.22 and 19,979.68 is: 29,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.86 : 59,569.22 = 19,979.68 : x
  2. Step 2: Convert to fraction form
    39,711.86/59,569.22 = 19,979.68/x
  3. Step 3: Cross multiply
    39,711.86x = 59,569.22 × 19,979.68
  4. Step 4: Simplify right side
    39,711.86x = 1,190,173,953.45
  5. Step 5: Solve for x
    x = 1,190,173,953.45/39,711.86
  6. Step 6: Final answer
    x = 29,970.24

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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.