Home / 35,220.77-52,878.08-20,440.29

Finding the Fourth Proportional to 35,220.77, 52,878.08 and 20,440.29

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Solution

The fourth proportional to 35,220.77, 52,878.08 and 20,440.29 is: 30,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,220.77 : 52,878.08 = 20,440.29 : x
  2. Step 2: Convert to fraction form
    35,220.77/52,878.08 = 20,440.29/x
  3. Step 3: Cross multiply
    35,220.77x = 52,878.08 × 20,440.29
  4. Step 4: Simplify right side
    35,220.77x = 1,080,843,289.84
  5. Step 5: Solve for x
    x = 1,080,843,289.84/35,220.77
  6. Step 6: Final answer
    x = 30,687.67

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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.