Home / 29,430.05-40,619.91-19,359.48

Finding the Fourth Proportional to 29,430.05, 40,619.91 and 19,359.48

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Solution

The fourth proportional to 29,430.05, 40,619.91 and 19,359.48 is: 26,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,430.05 : 40,619.91 = 19,359.48 : x
  2. Step 2: Convert to fraction form
    29,430.05/40,619.91 = 19,359.48/x
  3. Step 3: Cross multiply
    29,430.05x = 40,619.91 × 19,359.48
  4. Step 4: Simplify right side
    29,430.05x = 786,380,335.25
  5. Step 5: Solve for x
    x = 786,380,335.25/29,430.05
  6. Step 6: Final answer
    x = 26,720.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.