Home / 35,585.88-49,108.32-20,478.84

Finding the Fourth Proportional to 35,585.88, 49,108.32 and 20,478.84

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Solution

The fourth proportional to 35,585.88, 49,108.32 and 20,478.84 is: 28,260.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,585.88 : 49,108.32 = 20,478.84 : x
  2. Step 2: Convert to fraction form
    35,585.88/49,108.32 = 20,478.84/x
  3. Step 3: Cross multiply
    35,585.88x = 49,108.32 × 20,478.84
  4. Step 4: Simplify right side
    35,585.88x = 1,005,681,427.95
  5. Step 5: Solve for x
    x = 1,005,681,427.95/35,585.88
  6. Step 6: Final answer
    x = 28,260.69

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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.