Home / 28,417.96-42,626.97-12,619.28

Finding the Fourth Proportional to 28,417.96, 42,626.97 and 12,619.28

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Solution

The fourth proportional to 28,417.96, 42,626.97 and 12,619.28 is: 18,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417.96 : 42,626.97 = 12,619.28 : x
  2. Step 2: Convert to fraction form
    28,417.96/42,626.97 = 12,619.28/x
  3. Step 3: Cross multiply
    28,417.96x = 42,626.97 × 12,619.28
  4. Step 4: Simplify right side
    28,417.96x = 537,921,669.98
  5. Step 5: Solve for x
    x = 537,921,669.98/28,417.96
  6. Step 6: Final answer
    x = 18,928.93

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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.