Home / 28,880.19-43,325.69-9,153.45

Finding the Fourth Proportional to 28,880.19, 43,325.69 and 9,153.45

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Solution

The fourth proportional to 28,880.19, 43,325.69 and 9,153.45 is: 13,731.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.19 : 43,325.69 = 9,153.45 : x
  2. Step 2: Convert to fraction form
    28,880.19/43,325.69 = 9,153.45/x
  3. Step 3: Cross multiply
    28,880.19x = 43,325.69 × 9,153.45
  4. Step 4: Simplify right side
    28,880.19x = 396,579,491.36
  5. Step 5: Solve for x
    x = 396,579,491.36/28,880.19
  6. Step 6: Final answer
    x = 13,731.89

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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.