Home / 28,370.54-39,145.40-16,433.16

Finding the Fourth Proportional to 28,370.54, 39,145.40 and 16,433.16

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Solution

The fourth proportional to 28,370.54, 39,145.40 and 16,433.16 is: 22,674.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.54 : 39,145.40 = 16,433.16 : x
  2. Step 2: Convert to fraction form
    28,370.54/39,145.40 = 16,433.16/x
  3. Step 3: Cross multiply
    28,370.54x = 39,145.40 × 16,433.16
  4. Step 4: Simplify right side
    28,370.54x = 643,282,539.30
  5. Step 5: Solve for x
    x = 643,282,539.30/28,370.54
  6. Step 6: Final answer
    x = 22,674.32

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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.