Home / 21,668.48-32,499.40-6,875.47

Finding the Fourth Proportional to 21,668.48, 32,499.40 and 6,875.47

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Solution

The fourth proportional to 21,668.48, 32,499.40 and 6,875.47 is: 10,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.48 : 32,499.40 = 6,875.47 : x
  2. Step 2: Convert to fraction form
    21,668.48/32,499.40 = 6,875.47/x
  3. Step 3: Cross multiply
    21,668.48x = 32,499.40 × 6,875.47
  4. Step 4: Simplify right side
    21,668.48x = 223,448,649.72
  5. Step 5: Solve for x
    x = 223,448,649.72/21,668.48
  6. Step 6: Final answer
    x = 10,312.15

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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.