Home / 28,616.04-42,919.74-12,817.80

Finding the Fourth Proportional to 28,616.04, 42,919.74 and 12,817.80

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Solution

The fourth proportional to 28,616.04, 42,919.74 and 12,817.80 is: 19,224.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,616.04 : 42,919.74 = 12,817.80 : x
  2. Step 2: Convert to fraction form
    28,616.04/42,919.74 = 12,817.80/x
  3. Step 3: Cross multiply
    28,616.04x = 42,919.74 × 12,817.80
  4. Step 4: Simplify right side
    28,616.04x = 550,136,643.37
  5. Step 5: Solve for x
    x = 550,136,643.37/28,616.04
  6. Step 6: Final answer
    x = 19,224.76

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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.