Home / 27,681.47-38,202.48-15,748.65

Finding the Fourth Proportional to 27,681.47, 38,202.48 and 15,748.65

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Solution

The fourth proportional to 27,681.47, 38,202.48 and 15,748.65 is: 21,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,681.47 : 38,202.48 = 15,748.65 : x
  2. Step 2: Convert to fraction form
    27,681.47/38,202.48 = 15,748.65/x
  3. Step 3: Cross multiply
    27,681.47x = 38,202.48 × 15,748.65
  4. Step 4: Simplify right side
    27,681.47x = 601,637,486.65
  5. Step 5: Solve for x
    x = 601,637,486.65/27,681.47
  6. Step 6: Final answer
    x = 21,734.31

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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.