Home / 25,435.10-38,129.43-9,840.98

Finding the Fourth Proportional to 25,435.10, 38,129.43 and 9,840.98

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Solution

The fourth proportional to 25,435.10, 38,129.43 and 9,840.98 is: 14,752.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,435.10 : 38,129.43 = 9,840.98 : x
  2. Step 2: Convert to fraction form
    25,435.10/38,129.43 = 9,840.98/x
  3. Step 3: Cross multiply
    25,435.10x = 38,129.43 × 9,840.98
  4. Step 4: Simplify right side
    25,435.10x = 375,230,958.04
  5. Step 5: Solve for x
    x = 375,230,958.04/25,435.10
  6. Step 6: Final answer
    x = 14,752.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.