Home / 38,569.40-53,224.94-20,905.40

Finding the Fourth Proportional to 38,569.40, 53,224.94 and 20,905.40

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Solution

The fourth proportional to 38,569.40, 53,224.94 and 20,905.40 is: 28,849.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,569.40 : 53,224.94 = 20,905.40 : x
  2. Step 2: Convert to fraction form
    38,569.40/53,224.94 = 20,905.40/x
  3. Step 3: Cross multiply
    38,569.40x = 53,224.94 × 20,905.40
  4. Step 4: Simplify right side
    38,569.40x = 1,112,688,660.68
  5. Step 5: Solve for x
    x = 1,112,688,660.68/38,569.40
  6. Step 6: Final answer
    x = 28,849.00

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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.