Home / 42,189.21-63,288.54-14,112.99

Finding the Fourth Proportional to 42,189.21, 63,288.54 and 14,112.99

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Solution

The fourth proportional to 42,189.21, 63,288.54 and 14,112.99 is: 21,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,189.21 : 63,288.54 = 14,112.99 : x
  2. Step 2: Convert to fraction form
    42,189.21/63,288.54 = 14,112.99/x
  3. Step 3: Cross multiply
    42,189.21x = 63,288.54 × 14,112.99
  4. Step 4: Simplify right side
    42,189.21x = 893,190,532.13
  5. Step 5: Solve for x
    x = 893,190,532.13/42,189.21
  6. Step 6: Final answer
    x = 21,171.07

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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.