Home / 25,009.24-34,486.41-15,561.40

Finding the Fourth Proportional to 25,009.24, 34,486.41 and 15,561.40

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Solution

The fourth proportional to 25,009.24, 34,486.41 and 15,561.40 is: 21,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,009.24 : 34,486.41 = 15,561.40 : x
  2. Step 2: Convert to fraction form
    25,009.24/34,486.41 = 15,561.40/x
  3. Step 3: Cross multiply
    25,009.24x = 34,486.41 × 15,561.40
  4. Step 4: Simplify right side
    25,009.24x = 536,656,820.57
  5. Step 5: Solve for x
    x = 536,656,820.57/25,009.24
  6. Step 6: Final answer
    x = 21,458.34

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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.