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Finding the Fourth Proportional to 34,507.71, 47,621.13 and 19,399.53

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Solution

The fourth proportional to 34,507.71, 47,621.13 and 19,399.53 is: 26,771.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,507.71 : 47,621.13 = 19,399.53 : x
  2. Step 2: Convert to fraction form
    34,507.71/47,621.13 = 19,399.53/x
  3. Step 3: Cross multiply
    34,507.71x = 47,621.13 × 19,399.53
  4. Step 4: Simplify right side
    34,507.71x = 923,827,271.38
  5. Step 5: Solve for x
    x = 923,827,271.38/34,507.71
  6. Step 6: Final answer
    x = 26,771.62

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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.