Home / 21,997.23-30,355.85-11,925.50

Finding the Fourth Proportional to 21,997.23, 30,355.85 and 11,925.50

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Solution

The fourth proportional to 21,997.23, 30,355.85 and 11,925.50 is: 16,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.23 : 30,355.85 = 11,925.50 : x
  2. Step 2: Convert to fraction form
    21,997.23/30,355.85 = 11,925.50/x
  3. Step 3: Cross multiply
    21,997.23x = 30,355.85 × 11,925.50
  4. Step 4: Simplify right side
    21,997.23x = 362,008,477.77
  5. Step 5: Solve for x
    x = 362,008,477.77/21,997.23
  6. Step 6: Final answer
    x = 16,457.00

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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.