Home / 21,153.61-31,737.75-6,362.20

Finding the Fourth Proportional to 21,153.61, 31,737.75 and 6,362.20

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Solution

The fourth proportional to 21,153.61, 31,737.75 and 6,362.20 is: 9,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.61 : 31,737.75 = 6,362.20 : x
  2. Step 2: Convert to fraction form
    21,153.61/31,737.75 = 6,362.20/x
  3. Step 3: Cross multiply
    21,153.61x = 31,737.75 × 6,362.20
  4. Step 4: Simplify right side
    21,153.61x = 201,921,913.05
  5. Step 5: Solve for x
    x = 201,921,913.05/21,153.61
  6. Step 6: Final answer
    x = 9,545.51

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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.