Home / 21,912.02-30,263.73-15,970.22

Finding the Fourth Proportional to 21,912.02, 30,263.73 and 15,970.22

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Solution

The fourth proportional to 21,912.02, 30,263.73 and 15,970.22 is: 22,057.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912.02 : 30,263.73 = 15,970.22 : x
  2. Step 2: Convert to fraction form
    21,912.02/30,263.73 = 15,970.22/x
  3. Step 3: Cross multiply
    21,912.02x = 30,263.73 × 15,970.22
  4. Step 4: Simplify right side
    21,912.02x = 483,318,426.12
  5. Step 5: Solve for x
    x = 483,318,426.12/21,912.02
  6. Step 6: Final answer
    x = 22,057.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.