Home / 39,834.65-54,971.80-21,929.67

Finding the Fourth Proportional to 39,834.65, 54,971.80 and 21,929.67

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Solution

The fourth proportional to 39,834.65, 54,971.80 and 21,929.67 is: 30,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,834.65 : 54,971.80 = 21,929.67 : x
  2. Step 2: Convert to fraction form
    39,834.65/54,971.80 = 21,929.67/x
  3. Step 3: Cross multiply
    39,834.65x = 54,971.80 × 21,929.67
  4. Step 4: Simplify right side
    39,834.65x = 1,205,513,378.48
  5. Step 5: Solve for x
    x = 1,205,513,378.48/39,834.65
  6. Step 6: Final answer
    x = 30,262.93

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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.