Home / 21,621.48-32,437.08-15,646.11

Finding the Fourth Proportional to 21,621.48, 32,437.08 and 15,646.11

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Solution

The fourth proportional to 21,621.48, 32,437.08 and 15,646.11 is: 23,472.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.48 : 32,437.08 = 15,646.11 : x
  2. Step 2: Convert to fraction form
    21,621.48/32,437.08 = 15,646.11/x
  3. Step 3: Cross multiply
    21,621.48x = 32,437.08 × 15,646.11
  4. Step 4: Simplify right side
    21,621.48x = 507,514,121.76
  5. Step 5: Solve for x
    x = 507,514,121.76/21,621.48
  6. Step 6: Final answer
    x = 23,472.68

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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.