Home / 28,036.85-42,055.00-9,318.25

Finding the Fourth Proportional to 28,036.85, 42,055.00 and 9,318.25

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Solution

The fourth proportional to 28,036.85, 42,055.00 and 9,318.25 is: 13,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.85 : 42,055.00 = 9,318.25 : x
  2. Step 2: Convert to fraction form
    28,036.85/42,055.00 = 9,318.25/x
  3. Step 3: Cross multiply
    28,036.85x = 42,055.00 × 9,318.25
  4. Step 4: Simplify right side
    28,036.85x = 391,879,033.02
  5. Step 5: Solve for x
    x = 391,879,033.02/28,036.85
  6. Step 6: Final answer
    x = 13,977.29

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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.