Home / 19,581.56-29,370.04-6,430.69

Finding the Fourth Proportional to 19,581.56, 29,370.04 and 6,430.69

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Solution

The fourth proportional to 19,581.56, 29,370.04 and 6,430.69 is: 9,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.56 : 29,370.04 = 6,430.69 : x
  2. Step 2: Convert to fraction form
    19,581.56/29,370.04 = 6,430.69/x
  3. Step 3: Cross multiply
    19,581.56x = 29,370.04 × 6,430.69
  4. Step 4: Simplify right side
    19,581.56x = 188,869,533.03
  5. Step 5: Solve for x
    x = 188,869,533.03/19,581.56
  6. Step 6: Final answer
    x = 9,645.28

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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.