Home / 38,747.69-53,477.02-21,752.85

Finding the Fourth Proportional to 38,747.69, 53,477.02 and 21,752.85

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Solution

The fourth proportional to 38,747.69, 53,477.02 and 21,752.85 is: 30,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,747.69 : 53,477.02 = 21,752.85 : x
  2. Step 2: Convert to fraction form
    38,747.69/53,477.02 = 21,752.85/x
  3. Step 3: Cross multiply
    38,747.69x = 53,477.02 × 21,752.85
  4. Step 4: Simplify right side
    38,747.69x = 1,163,277,445.59
  5. Step 5: Solve for x
    x = 1,163,277,445.59/38,747.69
  6. Step 6: Final answer
    x = 30,021.85

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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.