Home / 21,416.18-32,127.02-7,378.38

Finding the Fourth Proportional to 21,416.18, 32,127.02 and 7,378.38

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Solution

The fourth proportional to 21,416.18, 32,127.02 and 7,378.38 is: 11,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.18 : 32,127.02 = 7,378.38 : x
  2. Step 2: Convert to fraction form
    21,416.18/32,127.02 = 7,378.38/x
  3. Step 3: Cross multiply
    21,416.18x = 32,127.02 × 7,378.38
  4. Step 4: Simplify right side
    21,416.18x = 237,045,324.94
  5. Step 5: Solve for x
    x = 237,045,324.94/21,416.18
  6. Step 6: Final answer
    x = 11,068.52

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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.