Home / 25,341.87-34,970.68-13,856.58

Finding the Fourth Proportional to 25,341.87, 34,970.68 and 13,856.58

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Solution

The fourth proportional to 25,341.87, 34,970.68 and 13,856.58 is: 19,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,341.87 : 34,970.68 = 13,856.58 : x
  2. Step 2: Convert to fraction form
    25,341.87/34,970.68 = 13,856.58/x
  3. Step 3: Cross multiply
    25,341.87x = 34,970.68 × 13,856.58
  4. Step 4: Simplify right side
    25,341.87x = 484,574,025.07
  5. Step 5: Solve for x
    x = 484,574,025.07/25,341.87
  6. Step 6: Final answer
    x = 19,121.48

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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.