Home / 28,048.77-42,069.51-12,462.75

Finding the Fourth Proportional to 28,048.77, 42,069.51 and 12,462.75

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Solution

The fourth proportional to 28,048.77, 42,069.51 and 12,462.75 is: 18,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.77 : 42,069.51 = 12,462.75 : x
  2. Step 2: Convert to fraction form
    28,048.77/42,069.51 = 12,462.75/x
  3. Step 3: Cross multiply
    28,048.77x = 42,069.51 × 12,462.75
  4. Step 4: Simplify right side
    28,048.77x = 524,301,785.75
  5. Step 5: Solve for x
    x = 524,301,785.75/28,048.77
  6. Step 6: Final answer
    x = 18,692.51

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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.