Home / 35,631.97-53,457.20-13,445.55

Finding the Fourth Proportional to 35,631.97, 53,457.20 and 13,445.55

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Solution

The fourth proportional to 35,631.97, 53,457.20 and 13,445.55 is: 20,171.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,631.97 : 53,457.20 = 13,445.55 : x
  2. Step 2: Convert to fraction form
    35,631.97/53,457.20 = 13,445.55/x
  3. Step 3: Cross multiply
    35,631.97x = 53,457.20 × 13,445.55
  4. Step 4: Simplify right side
    35,631.97x = 718,761,455.46
  5. Step 5: Solve for x
    x = 718,761,455.46/35,631.97
  6. Step 6: Final answer
    x = 20,171.81

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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.