Home / 21,515.65-32,263.76-7,665.01

Finding the Fourth Proportional to 21,515.65, 32,263.76 and 7,665.01

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Solution

The fourth proportional to 21,515.65, 32,263.76 and 7,665.01 is: 11,494.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.65 : 32,263.76 = 7,665.01 : x
  2. Step 2: Convert to fraction form
    21,515.65/32,263.76 = 7,665.01/x
  3. Step 3: Cross multiply
    21,515.65x = 32,263.76 × 7,665.01
  4. Step 4: Simplify right side
    21,515.65x = 247,302,004.71
  5. Step 5: Solve for x
    x = 247,302,004.71/21,515.65
  6. Step 6: Final answer
    x = 11,494.05

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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.