Home / 27,681.34-38,202.31-15,748.53

Finding the Fourth Proportional to 27,681.34, 38,202.31 and 15,748.53

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Solution

The fourth proportional to 27,681.34, 38,202.31 and 15,748.53 is: 21,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,681.34 : 38,202.31 = 15,748.53 : x
  2. Step 2: Convert to fraction form
    27,681.34/38,202.31 = 15,748.53/x
  3. Step 3: Cross multiply
    27,681.34x = 38,202.31 × 15,748.53
  4. Step 4: Simplify right side
    27,681.34x = 601,630,225.10
  5. Step 5: Solve for x
    x = 601,630,225.10/27,681.34
  6. Step 6: Final answer
    x = 21,734.14

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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.