Home / 20,894.61-31,341.98-5,312.24

Finding the Fourth Proportional to 20,894.61, 31,341.98 and 5,312.24

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Solution

The fourth proportional to 20,894.61, 31,341.98 and 5,312.24 is: 7,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.61 : 31,341.98 = 5,312.24 : x
  2. Step 2: Convert to fraction form
    20,894.61/31,341.98 = 5,312.24/x
  3. Step 3: Cross multiply
    20,894.61x = 31,341.98 × 5,312.24
  4. Step 4: Simplify right side
    20,894.61x = 166,495,936.56
  5. Step 5: Solve for x
    x = 166,495,936.56/20,894.61
  6. Step 6: Final answer
    x = 7,968.37

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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.