Home / 21,430.50-32,153.31-9,583.17

Finding the Fourth Proportional to 21,430.50, 32,153.31 and 9,583.17

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Solution

The fourth proportional to 21,430.50, 32,153.31 and 9,583.17 is: 14,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430.50 : 32,153.31 = 9,583.17 : x
  2. Step 2: Convert to fraction form
    21,430.50/32,153.31 = 9,583.17/x
  3. Step 3: Cross multiply
    21,430.50x = 32,153.31 × 9,583.17
  4. Step 4: Simplify right side
    21,430.50x = 308,130,427.11
  5. Step 5: Solve for x
    x = 308,130,427.11/21,430.50
  6. Step 6: Final answer
    x = 14,378.13

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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.