Home / 21,160.02-31,740.69-6,369.05

Finding the Fourth Proportional to 21,160.02, 31,740.69 and 6,369.05

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Solution

The fourth proportional to 21,160.02, 31,740.69 and 6,369.05 is: 9,553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160.02 : 31,740.69 = 6,369.05 : x
  2. Step 2: Convert to fraction form
    21,160.02/31,740.69 = 6,369.05/x
  3. Step 3: Cross multiply
    21,160.02x = 31,740.69 × 6,369.05
  4. Step 4: Simplify right side
    21,160.02x = 202,157,882.94
  5. Step 5: Solve for x
    x = 202,157,882.94/21,160.02
  6. Step 6: Final answer
    x = 9,553.77

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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.