Home / 28,453.23-42,622.70-14,178.69

Finding the Fourth Proportional to 28,453.23, 42,622.70 and 14,178.69

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Solution

The fourth proportional to 28,453.23, 42,622.70 and 14,178.69 is: 21,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.23 : 42,622.70 = 14,178.69 : x
  2. Step 2: Convert to fraction form
    28,453.23/42,622.70 = 14,178.69/x
  3. Step 3: Cross multiply
    28,453.23x = 42,622.70 × 14,178.69
  4. Step 4: Simplify right side
    28,453.23x = 604,333,979.37
  5. Step 5: Solve for x
    x = 604,333,979.37/28,453.23
  6. Step 6: Final answer
    x = 21,239.56

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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.