Home / 31,681.52-47,488.10-20,596.16

Finding the Fourth Proportional to 31,681.52, 47,488.10 and 20,596.16

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Solution

The fourth proportional to 31,681.52, 47,488.10 and 20,596.16 is: 30,872.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.52 : 47,488.10 = 20,596.16 : x
  2. Step 2: Convert to fraction form
    31,681.52/47,488.10 = 20,596.16/x
  3. Step 3: Cross multiply
    31,681.52x = 47,488.10 × 20,596.16
  4. Step 4: Simplify right side
    31,681.52x = 978,072,165.27
  5. Step 5: Solve for x
    x = 978,072,165.27/31,681.52
  6. Step 6: Final answer
    x = 30,872.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.