Home / 38,453.08-53,065.65-21,458.92

Finding the Fourth Proportional to 38,453.08, 53,065.65 and 21,458.92

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Solution

The fourth proportional to 38,453.08, 53,065.65 and 21,458.92 is: 29,613.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,453.08 : 53,065.65 = 21,458.92 : x
  2. Step 2: Convert to fraction form
    38,453.08/53,065.65 = 21,458.92/x
  3. Step 3: Cross multiply
    38,453.08x = 53,065.65 × 21,458.92
  4. Step 4: Simplify right side
    38,453.08x = 1,138,731,538.10
  5. Step 5: Solve for x
    x = 1,138,731,538.10/38,453.08
  6. Step 6: Final answer
    x = 29,613.53

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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.