Home / 62,543.08-93,828.66-20,989

Finding the Fourth Proportional to 62,543.08, 93,828.66 and 20,989

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Solution

The fourth proportional to 62,543.08, 93,828.66 and 20,989 is: 31,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,543.08 : 93,828.66 = 20,989 : x
  2. Step 2: Convert to fraction form
    62,543.08/93,828.66 = 20,989/x
  3. Step 3: Cross multiply
    62,543.08x = 93,828.66 × 20,989
  4. Step 4: Simplify right side
    62,543.08x = 1,969,369,744.74
  5. Step 5: Solve for x
    x = 1,969,369,744.74/62,543.08
  6. Step 6: Final answer
    x = 31,488.21

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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.