Home / 28,312.05-42,486.30-16,465.80

Finding the Fourth Proportional to 28,312.05, 42,486.30 and 16,465.80

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Solution

The fourth proportional to 28,312.05, 42,486.30 and 16,465.80 is: 24,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.05 : 42,486.30 = 16,465.80 : x
  2. Step 2: Convert to fraction form
    28,312.05/42,486.30 = 16,465.80/x
  3. Step 3: Cross multiply
    28,312.05x = 42,486.30 × 16,465.80
  4. Step 4: Simplify right side
    28,312.05x = 699,570,918.54
  5. Step 5: Solve for x
    x = 699,570,918.54/28,312.05
  6. Step 6: Final answer
    x = 24,709.30

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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.