Home / 19,881.02-27,406.85-13,894.08

Finding the Fourth Proportional to 19,881.02, 27,406.85 and 13,894.08

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Solution

The fourth proportional to 19,881.02, 27,406.85 and 13,894.08 is: 19,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.02 : 27,406.85 = 13,894.08 : x
  2. Step 2: Convert to fraction form
    19,881.02/27,406.85 = 13,894.08/x
  3. Step 3: Cross multiply
    19,881.02x = 27,406.85 × 13,894.08
  4. Step 4: Simplify right side
    19,881.02x = 380,792,896.98
  5. Step 5: Solve for x
    x = 380,792,896.98/19,881.02
  6. Step 6: Final answer
    x = 19,153.59

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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.