Home / 28,728.03-43,055.55-12,916.18

Finding the Fourth Proportional to 28,728.03, 43,055.55 and 12,916.18

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Solution

The fourth proportional to 28,728.03, 43,055.55 and 12,916.18 is: 19,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.03 : 43,055.55 = 12,916.18 : x
  2. Step 2: Convert to fraction form
    28,728.03/43,055.55 = 12,916.18/x
  3. Step 3: Cross multiply
    28,728.03x = 43,055.55 × 12,916.18
  4. Step 4: Simplify right side
    28,728.03x = 556,113,045.43
  5. Step 5: Solve for x
    x = 556,113,045.43/28,728.03
  6. Step 6: Final answer
    x = 19,357.85

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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.