Home / 38,632.26-53,315.91-21,636.23

Finding the Fourth Proportional to 38,632.26, 53,315.91 and 21,636.23

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Solution

The fourth proportional to 38,632.26, 53,315.91 and 21,636.23 is: 29,859.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,632.26 : 53,315.91 = 21,636.23 : x
  2. Step 2: Convert to fraction form
    38,632.26/53,315.91 = 21,636.23/x
  3. Step 3: Cross multiply
    38,632.26x = 53,315.91 × 21,636.23
  4. Step 4: Simplify right side
    38,632.26x = 1,153,555,024.84
  5. Step 5: Solve for x
    x = 1,153,555,024.84/38,632.26
  6. Step 6: Final answer
    x = 29,859.89

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1.5x scale

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.