Home / 39,690.22-54,763.95-22,913.50

Finding the Fourth Proportional to 39,690.22, 54,763.95 and 22,913.50

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Solution

The fourth proportional to 39,690.22, 54,763.95 and 22,913.50 is: 31,615.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,690.22 : 54,763.95 = 22,913.50 : x
  2. Step 2: Convert to fraction form
    39,690.22/54,763.95 = 22,913.50/x
  3. Step 3: Cross multiply
    39,690.22x = 54,763.95 × 22,913.50
  4. Step 4: Simplify right side
    39,690.22x = 1,254,833,768.33
  5. Step 5: Solve for x
    x = 1,254,833,768.33/39,690.22
  6. Step 6: Final answer
    x = 31,615.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.