Home / 47,615.23-71,420.01-21,312.91

Finding the Fourth Proportional to 47,615.23, 71,420.01 and 21,312.91

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Solution

The fourth proportional to 47,615.23, 71,420.01 and 21,312.91 is: 31,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,615.23 : 71,420.01 = 21,312.91 : x
  2. Step 2: Convert to fraction form
    47,615.23/71,420.01 = 21,312.91/x
  3. Step 3: Cross multiply
    47,615.23x = 71,420.01 × 21,312.91
  4. Step 4: Simplify right side
    47,615.23x = 1,522,168,245.33
  5. Step 5: Solve for x
    x = 1,522,168,245.33/47,615.23
  6. Step 6: Final answer
    x = 31,968.10

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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.