Home / 39,718.08-59,559.60-18,664.11

Finding the Fourth Proportional to 39,718.08, 59,559.60 and 18,664.11

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Solution

The fourth proportional to 39,718.08, 59,559.60 and 18,664.11 is: 27,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718.08 : 59,559.60 = 18,664.11 : x
  2. Step 2: Convert to fraction form
    39,718.08/59,559.60 = 18,664.11/x
  3. Step 3: Cross multiply
    39,718.08x = 59,559.60 × 18,664.11
  4. Step 4: Simplify right side
    39,718.08x = 1,111,626,925.96
  5. Step 5: Solve for x
    x = 1,111,626,925.96/39,718.08
  6. Step 6: Final answer
    x = 27,987.93

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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.