Home / 38,502.69-53,130.68-21,505.59

Finding the Fourth Proportional to 38,502.69, 53,130.68 and 21,505.59

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Solution

The fourth proportional to 38,502.69, 53,130.68 and 21,505.59 is: 29,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.69 : 53,130.68 = 21,505.59 : x
  2. Step 2: Convert to fraction form
    38,502.69/53,130.68 = 21,505.59/x
  3. Step 3: Cross multiply
    38,502.69x = 53,130.68 × 21,505.59
  4. Step 4: Simplify right side
    38,502.69x = 1,142,606,512.97
  5. Step 5: Solve for x
    x = 1,142,606,512.97/38,502.69
  6. Step 6: Final answer
    x = 29,676.02

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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.