Home / 20,509.22-30,762.54-5,720.24

Finding the Fourth Proportional to 20,509.22, 30,762.54 and 5,720.24

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Solution

The fourth proportional to 20,509.22, 30,762.54 and 5,720.24 is: 8,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509.22 : 30,762.54 = 5,720.24 : x
  2. Step 2: Convert to fraction form
    20,509.22/30,762.54 = 5,720.24/x
  3. Step 3: Cross multiply
    20,509.22x = 30,762.54 × 5,720.24
  4. Step 4: Simplify right side
    20,509.22x = 175,969,111.81
  5. Step 5: Solve for x
    x = 175,969,111.81/20,509.22
  6. Step 6: Final answer
    x = 8,580.00

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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.