Home / 35,217.36-52,809.32-20,430.81

Finding the Fourth Proportional to 35,217.36, 52,809.32 and 20,430.81

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Solution

The fourth proportional to 35,217.36, 52,809.32 and 20,430.81 is: 30,636.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,217.36 : 52,809.32 = 20,430.81 : x
  2. Step 2: Convert to fraction form
    35,217.36/52,809.32 = 20,430.81/x
  3. Step 3: Cross multiply
    35,217.36x = 52,809.32 × 20,430.81
  4. Step 4: Simplify right side
    35,217.36x = 1,078,937,234.23
  5. Step 5: Solve for x
    x = 1,078,937,234.23/35,217.36
  6. Step 6: Final answer
    x = 30,636.52

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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.