Home / 28,423.80-39,221.58-16,482.78

Finding the Fourth Proportional to 28,423.80, 39,221.58 and 16,482.78

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Solution

The fourth proportional to 28,423.80, 39,221.58 and 16,482.78 is: 22,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.80 : 39,221.58 = 16,482.78 : x
  2. Step 2: Convert to fraction form
    28,423.80/39,221.58 = 16,482.78/x
  3. Step 3: Cross multiply
    28,423.80x = 39,221.58 × 16,482.78
  4. Step 4: Simplify right side
    28,423.80x = 646,480,674.39
  5. Step 5: Solve for x
    x = 646,480,674.39/28,423.80
  6. Step 6: Final answer
    x = 22,744.34

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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.