Home / 25,705.36-35,477.42-15,636.96

Finding the Fourth Proportional to 25,705.36, 35,477.42 and 15,636.96

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Solution

The fourth proportional to 25,705.36, 35,477.42 and 15,636.96 is: 21,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.36 : 35,477.42 = 15,636.96 : x
  2. Step 2: Convert to fraction form
    25,705.36/35,477.42 = 15,636.96/x
  3. Step 3: Cross multiply
    25,705.36x = 35,477.42 × 15,636.96
  4. Step 4: Simplify right side
    25,705.36x = 554,758,919.26
  5. Step 5: Solve for x
    x = 554,758,919.26/25,705.36
  6. Step 6: Final answer
    x = 21,581.45

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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.