Home / 25,525.14-35,225.43-15,455.40

Finding the Fourth Proportional to 25,525.14, 35,225.43 and 15,455.40

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Solution

The fourth proportional to 25,525.14, 35,225.43 and 15,455.40 is: 21,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,525.14 : 35,225.43 = 15,455.40 : x
  2. Step 2: Convert to fraction form
    25,525.14/35,225.43 = 15,455.40/x
  3. Step 3: Cross multiply
    25,525.14x = 35,225.43 × 15,455.40
  4. Step 4: Simplify right side
    25,525.14x = 544,423,110.82
  5. Step 5: Solve for x
    x = 544,423,110.82/25,525.14
  6. Step 6: Final answer
    x = 21,328.90

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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.