Home / 38,555.58-53,204.67-21,787.50

Finding the Fourth Proportional to 38,555.58, 53,204.67 and 21,787.50

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Solution

The fourth proportional to 38,555.58, 53,204.67 and 21,787.50 is: 30,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,555.58 : 53,204.67 = 21,787.50 : x
  2. Step 2: Convert to fraction form
    38,555.58/53,204.67 = 21,787.50/x
  3. Step 3: Cross multiply
    38,555.58x = 53,204.67 × 21,787.50
  4. Step 4: Simplify right side
    38,555.58x = 1,159,196,747.63
  5. Step 5: Solve for x
    x = 1,159,196,747.63/38,555.58
  6. Step 6: Final answer
    x = 30,065.60

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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.