Home / 21,773.04-30,053.19-14,220.53

Finding the Fourth Proportional to 21,773.04, 30,053.19 and 14,220.53

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Solution

The fourth proportional to 21,773.04, 30,053.19 and 14,220.53 is: 19,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.04 : 30,053.19 = 14,220.53 : x
  2. Step 2: Convert to fraction form
    21,773.04/30,053.19 = 14,220.53/x
  3. Step 3: Cross multiply
    21,773.04x = 30,053.19 × 14,220.53
  4. Step 4: Simplify right side
    21,773.04x = 427,372,139.72
  5. Step 5: Solve for x
    x = 427,372,139.72/21,773.04
  6. Step 6: Final answer
    x = 19,628.50

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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.