Home / 39,721.08-59,582.70-12,019.08

Finding the Fourth Proportional to 39,721.08, 59,582.70 and 12,019.08

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Solution

The fourth proportional to 39,721.08, 59,582.70 and 12,019.08 is: 18,028.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,721.08 : 59,582.70 = 12,019.08 : x
  2. Step 2: Convert to fraction form
    39,721.08/59,582.70 = 12,019.08/x
  3. Step 3: Cross multiply
    39,721.08x = 59,582.70 × 12,019.08
  4. Step 4: Simplify right side
    39,721.08x = 716,129,237.92
  5. Step 5: Solve for x
    x = 716,129,237.92/39,721.08
  6. Step 6: Final answer
    x = 18,028.95

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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.