Home / 28,509.36-42,774.23-12,712.98

Finding the Fourth Proportional to 28,509.36, 42,774.23 and 12,712.98

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Solution

The fourth proportional to 28,509.36, 42,774.23 and 12,712.98 is: 19,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.36 : 42,774.23 = 12,712.98 : x
  2. Step 2: Convert to fraction form
    28,509.36/42,774.23 = 12,712.98/x
  3. Step 3: Cross multiply
    28,509.36x = 42,774.23 × 12,712.98
  4. Step 4: Simplify right side
    28,509.36x = 543,787,866.94
  5. Step 5: Solve for x
    x = 543,787,866.94/28,509.36
  6. Step 6: Final answer
    x = 19,074.01

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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.