Home / 39,678.64-54,756.50-22,683.26

Finding the Fourth Proportional to 39,678.64, 54,756.50 and 22,683.26

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Solution

The fourth proportional to 39,678.64, 54,756.50 and 22,683.26 is: 31,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.64 : 54,756.50 = 22,683.26 : x
  2. Step 2: Convert to fraction form
    39,678.64/54,756.50 = 22,683.26/x
  3. Step 3: Cross multiply
    39,678.64x = 54,756.50 × 22,683.26
  4. Step 4: Simplify right side
    39,678.64x = 1,242,055,926.19
  5. Step 5: Solve for x
    x = 1,242,055,926.19/39,678.64
  6. Step 6: Final answer
    x = 31,302.89

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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.