Home / 15,985.31-23,981.47-4,892.85

Finding the Fourth Proportional to 15,985.31, 23,981.47 and 4,892.85

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Solution

The fourth proportional to 15,985.31, 23,981.47 and 4,892.85 is: 7,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.31 : 23,981.47 = 4,892.85 : x
  2. Step 2: Convert to fraction form
    15,985.31/23,981.47 = 4,892.85/x
  3. Step 3: Cross multiply
    15,985.31x = 23,981.47 × 4,892.85
  4. Step 4: Simplify right side
    15,985.31x = 117,337,746.19
  5. Step 5: Solve for x
    x = 117,337,746.19/15,985.31
  6. Step 6: Final answer
    x = 7,340.35

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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.