Home / 38,504.43-53,130.69-21,506.31

Finding the Fourth Proportional to 38,504.43, 53,130.69 and 21,506.31

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Solution

The fourth proportional to 38,504.43, 53,130.69 and 21,506.31 is: 29,675.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,504.43 : 53,130.69 = 21,506.31 : x
  2. Step 2: Convert to fraction form
    38,504.43/53,130.69 = 21,506.31/x
  3. Step 3: Cross multiply
    38,504.43x = 53,130.69 × 21,506.31
  4. Step 4: Simplify right side
    38,504.43x = 1,142,645,089.65
  5. Step 5: Solve for x
    x = 1,142,645,089.65/38,504.43
  6. Step 6: Final answer
    x = 29,675.68

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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.