Home / 28,411.56-39,224.16-18,864.36

Finding the Fourth Proportional to 28,411.56, 39,224.16 and 18,864.36

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Solution

The fourth proportional to 28,411.56, 39,224.16 and 18,864.36 is: 26,043.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411.56 : 39,224.16 = 18,864.36 : x
  2. Step 2: Convert to fraction form
    28,411.56/39,224.16 = 18,864.36/x
  3. Step 3: Cross multiply
    28,411.56x = 39,224.16 × 18,864.36
  4. Step 4: Simplify right side
    28,411.56x = 739,938,674.94
  5. Step 5: Solve for x
    x = 739,938,674.94/28,411.56
  6. Step 6: Final answer
    x = 26,043.58

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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.