Home / 25,620.40-35,345.96-15,545.14

Finding the Fourth Proportional to 25,620.40, 35,345.96 and 15,545.14

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Solution

The fourth proportional to 25,620.40, 35,345.96 and 15,545.14 is: 21,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,620.40 : 35,345.96 = 15,545.14 : x
  2. Step 2: Convert to fraction form
    25,620.40/35,345.96 = 15,545.14/x
  3. Step 3: Cross multiply
    25,620.40x = 35,345.96 × 15,545.14
  4. Step 4: Simplify right side
    25,620.40x = 549,457,896.63
  5. Step 5: Solve for x
    x = 549,457,896.63/25,620.40
  6. Step 6: Final answer
    x = 21,446.11

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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.