Home / 20,430.44-28,184.36-17,477.99

Finding the Fourth Proportional to 20,430.44, 28,184.36 and 17,477.99

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Solution

The fourth proportional to 20,430.44, 28,184.36 and 17,477.99 is: 24,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430.44 : 28,184.36 = 17,477.99 : x
  2. Step 2: Convert to fraction form
    20,430.44/28,184.36 = 17,477.99/x
  3. Step 3: Cross multiply
    20,430.44x = 28,184.36 × 17,477.99
  4. Step 4: Simplify right side
    20,430.44x = 492,605,733.92
  5. Step 5: Solve for x
    x = 492,605,733.92/20,430.44
  6. Step 6: Final answer
    x = 24,111.37

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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.