Home / 31,536.04-43,495.12-20,206.59

Finding the Fourth Proportional to 31,536.04, 43,495.12 and 20,206.59

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Solution

The fourth proportional to 31,536.04, 43,495.12 and 20,206.59 is: 27,869.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536.04 : 43,495.12 = 20,206.59 : x
  2. Step 2: Convert to fraction form
    31,536.04/43,495.12 = 20,206.59/x
  3. Step 3: Cross multiply
    31,536.04x = 43,495.12 × 20,206.59
  4. Step 4: Simplify right side
    31,536.04x = 878,888,056.84
  5. Step 5: Solve for x
    x = 878,888,056.84/31,536.04
  6. Step 6: Final answer
    x = 27,869.32

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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.