Home / 38,435.76-53,041.36-21,668.72

Finding the Fourth Proportional to 38,435.76, 53,041.36 and 21,668.72

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Solution

The fourth proportional to 38,435.76, 53,041.36 and 21,668.72 is: 29,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.76 : 53,041.36 = 21,668.72 : x
  2. Step 2: Convert to fraction form
    38,435.76/53,041.36 = 21,668.72/x
  3. Step 3: Cross multiply
    38,435.76x = 53,041.36 × 21,668.72
  4. Step 4: Simplify right side
    38,435.76x = 1,149,338,378.26
  5. Step 5: Solve for x
    x = 1,149,338,378.26/38,435.76
  6. Step 6: Final answer
    x = 29,902.84

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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.