Home / 31,426.03-43,365.35-18,503.26

Finding the Fourth Proportional to 31,426.03, 43,365.35 and 18,503.26

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Solution

The fourth proportional to 31,426.03, 43,365.35 and 18,503.26 is: 25,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.03 : 43,365.35 = 18,503.26 : x
  2. Step 2: Convert to fraction form
    31,426.03/43,365.35 = 18,503.26/x
  3. Step 3: Cross multiply
    31,426.03x = 43,365.35 × 18,503.26
  4. Step 4: Simplify right side
    31,426.03x = 802,400,346.04
  5. Step 5: Solve for x
    x = 802,400,346.04/31,426.03
  6. Step 6: Final answer
    x = 25,532.98

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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.