Home / 25,403.12-35,073.44-15,857.54

Finding the Fourth Proportional to 25,403.12, 35,073.44 and 15,857.54

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Solution

The fourth proportional to 25,403.12, 35,073.44 and 15,857.54 is: 21,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.12 : 35,073.44 = 15,857.54 : x
  2. Step 2: Convert to fraction form
    25,403.12/35,073.44 = 15,857.54/x
  3. Step 3: Cross multiply
    25,403.12x = 35,073.44 × 15,857.54
  4. Step 4: Simplify right side
    25,403.12x = 556,178,477.74
  5. Step 5: Solve for x
    x = 556,178,477.74/25,403.12
  6. Step 6: Final answer
    x = 21,894.10

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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.