Home / 25,818.32-35,622.60-15,208.40

Finding the Fourth Proportional to 25,818.32, 35,622.60 and 15,208.40

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Solution

The fourth proportional to 25,818.32, 35,622.60 and 15,208.40 is: 20,983.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818.32 : 35,622.60 = 15,208.40 : x
  2. Step 2: Convert to fraction form
    25,818.32/35,622.60 = 15,208.40/x
  3. Step 3: Cross multiply
    25,818.32x = 35,622.60 × 15,208.40
  4. Step 4: Simplify right side
    25,818.32x = 541,762,749.84
  5. Step 5: Solve for x
    x = 541,762,749.84/25,818.32
  6. Step 6: Final answer
    x = 20,983.66

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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.