Home / 25,451.18-35,129.31-14,276.78

Finding the Fourth Proportional to 25,451.18, 35,129.31 and 14,276.78

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Solution

The fourth proportional to 25,451.18, 35,129.31 and 14,276.78 is: 19,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.18 : 35,129.31 = 14,276.78 : x
  2. Step 2: Convert to fraction form
    25,451.18/35,129.31 = 14,276.78/x
  3. Step 3: Cross multiply
    25,451.18x = 35,129.31 × 14,276.78
  4. Step 4: Simplify right side
    25,451.18x = 501,533,430.42
  5. Step 5: Solve for x
    x = 501,533,430.42/25,451.18
  6. Step 6: Final answer
    x = 19,705.70

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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.