Home / 39,114.18-53,977.50-21,886.56

Finding the Fourth Proportional to 39,114.18, 53,977.50 and 21,886.56

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Solution

The fourth proportional to 39,114.18, 53,977.50 and 21,886.56 is: 30,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,114.18 : 53,977.50 = 21,886.56 : x
  2. Step 2: Convert to fraction form
    39,114.18/53,977.50 = 21,886.56/x
  3. Step 3: Cross multiply
    39,114.18x = 53,977.50 × 21,886.56
  4. Step 4: Simplify right side
    39,114.18x = 1,181,381,792.40
  5. Step 5: Solve for x
    x = 1,181,381,792.40/39,114.18
  6. Step 6: Final answer
    x = 30,203.41

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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.