Home / 21,498.48-32,273.64-12,743.28

Finding the Fourth Proportional to 21,498.48, 32,273.64 and 12,743.28

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Solution

The fourth proportional to 21,498.48, 32,273.64 and 12,743.28 is: 19,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.48 : 32,273.64 = 12,743.28 : x
  2. Step 2: Convert to fraction form
    21,498.48/32,273.64 = 12,743.28/x
  3. Step 3: Cross multiply
    21,498.48x = 32,273.64 × 12,743.28
  4. Step 4: Simplify right side
    21,498.48x = 411,272,031.14
  5. Step 5: Solve for x
    x = 411,272,031.14/21,498.48
  6. Step 6: Final answer
    x = 19,130.28

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1.5x scale

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.