Home / 28,036.99-42,063.05-9,320.05

Finding the Fourth Proportional to 28,036.99, 42,063.05 and 9,320.05

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Solution

The fourth proportional to 28,036.99, 42,063.05 and 9,320.05 is: 13,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.99 : 42,063.05 = 9,320.05 : x
  2. Step 2: Convert to fraction form
    28,036.99/42,063.05 = 9,320.05/x
  3. Step 3: Cross multiply
    28,036.99x = 42,063.05 × 9,320.05
  4. Step 4: Simplify right side
    28,036.99x = 392,029,729.15
  5. Step 5: Solve for x
    x = 392,029,729.15/28,036.99
  6. Step 6: Final answer
    x = 13,982.59

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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.