Home / 42,854.49-64,323.19-20,683.47

Finding the Fourth Proportional to 42,854.49, 64,323.19 and 20,683.47

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Solution

The fourth proportional to 42,854.49, 64,323.19 and 20,683.47 is: 31,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,854.49 : 64,323.19 = 20,683.47 : x
  2. Step 2: Convert to fraction form
    42,854.49/64,323.19 = 20,683.47/x
  3. Step 3: Cross multiply
    42,854.49x = 64,323.19 × 20,683.47
  4. Step 4: Simplify right side
    42,854.49x = 1,330,426,975.30
  5. Step 5: Solve for x
    x = 1,330,426,975.30/42,854.49
  6. Step 6: Final answer
    x = 31,045.22

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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.