Home / 28,807.14-43,210.72-9,087.70

Finding the Fourth Proportional to 28,807.14, 43,210.72 and 9,087.70

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Solution

The fourth proportional to 28,807.14, 43,210.72 and 9,087.70 is: 13,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807.14 : 43,210.72 = 9,087.70 : x
  2. Step 2: Convert to fraction form
    28,807.14/43,210.72 = 9,087.70/x
  3. Step 3: Cross multiply
    28,807.14x = 43,210.72 × 9,087.70
  4. Step 4: Simplify right side
    28,807.14x = 392,686,060.14
  5. Step 5: Solve for x
    x = 392,686,060.14/28,807.14
  6. Step 6: Final answer
    x = 13,631.55

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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.