Home / 39,788.08-59,669.93-13,129.16

Finding the Fourth Proportional to 39,788.08, 59,669.93 and 13,129.16

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Solution

The fourth proportional to 39,788.08, 59,669.93 and 13,129.16 is: 19,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.08 : 59,669.93 = 13,129.16 : x
  2. Step 2: Convert to fraction form
    39,788.08/59,669.93 = 13,129.16/x
  3. Step 3: Cross multiply
    39,788.08x = 59,669.93 × 13,129.16
  4. Step 4: Simplify right side
    39,788.08x = 783,415,792.63
  5. Step 5: Solve for x
    x = 783,415,792.63/39,788.08
  6. Step 6: Final answer
    x = 19,689.71

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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.