Home / 35,418.05-53,069.33-20,639.42

Finding the Fourth Proportional to 35,418.05, 53,069.33 and 20,639.42

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Solution

The fourth proportional to 35,418.05, 53,069.33 and 20,639.42 is: 30,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,418.05 : 53,069.33 = 20,639.42 : x
  2. Step 2: Convert to fraction form
    35,418.05/53,069.33 = 20,639.42/x
  3. Step 3: Cross multiply
    35,418.05x = 53,069.33 × 20,639.42
  4. Step 4: Simplify right side
    35,418.05x = 1,095,319,977.24
  5. Step 5: Solve for x
    x = 1,095,319,977.24/35,418.05
  6. Step 6: Final answer
    x = 30,925.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.