Home / 21,581.07-32,386.28-7,730.07

Finding the Fourth Proportional to 21,581.07, 32,386.28 and 7,730.07

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Solution

The fourth proportional to 21,581.07, 32,386.28 and 7,730.07 is: 11,600.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581.07 : 32,386.28 = 7,730.07 : x
  2. Step 2: Convert to fraction form
    21,581.07/32,386.28 = 7,730.07/x
  3. Step 3: Cross multiply
    21,581.07x = 32,386.28 × 7,730.07
  4. Step 4: Simplify right side
    21,581.07x = 250,348,172.79
  5. Step 5: Solve for x
    x = 250,348,172.79/21,581.07
  6. Step 6: Final answer
    x = 11,600.36

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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.