Home / 23,430.47-35,137.40-7,631.21

Finding the Fourth Proportional to 23,430.47, 35,137.40 and 7,631.21

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Solution

The fourth proportional to 23,430.47, 35,137.40 and 7,631.21 is: 11,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,430.47 : 35,137.40 = 7,631.21 : x
  2. Step 2: Convert to fraction form
    23,430.47/35,137.40 = 7,631.21/x
  3. Step 3: Cross multiply
    23,430.47x = 35,137.40 × 7,631.21
  4. Step 4: Simplify right side
    23,430.47x = 268,140,927.94
  5. Step 5: Solve for x
    x = 268,140,927.94/23,430.47
  6. Step 6: Final answer
    x = 11,444.11

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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.