Home / 28,632.20-39,476.10-20,465.58

Finding the Fourth Proportional to 28,632.20, 39,476.10 and 20,465.58

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Solution

The fourth proportional to 28,632.20, 39,476.10 and 20,465.58 is: 28,216.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,632.20 : 39,476.10 = 20,465.58 : x
  2. Step 2: Convert to fraction form
    28,632.20/39,476.10 = 20,465.58/x
  3. Step 3: Cross multiply
    28,632.20x = 39,476.10 × 20,465.58
  4. Step 4: Simplify right side
    28,632.20x = 807,901,282.64
  5. Step 5: Solve for x
    x = 807,901,282.64/28,632.20
  6. Step 6: Final answer
    x = 28,216.53

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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.