Home / 21,277.02-31,920.26-6,487.08

Finding the Fourth Proportional to 21,277.02, 31,920.26 and 6,487.08

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Solution

The fourth proportional to 21,277.02, 31,920.26 and 6,487.08 is: 9,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.02 : 31,920.26 = 6,487.08 : x
  2. Step 2: Convert to fraction form
    21,277.02/31,920.26 = 6,487.08/x
  3. Step 3: Cross multiply
    21,277.02x = 31,920.26 × 6,487.08
  4. Step 4: Simplify right side
    21,277.02x = 207,069,280.24
  5. Step 5: Solve for x
    x = 207,069,280.24/21,277.02
  6. Step 6: Final answer
    x = 9,732.06

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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.