Home / 31,551.04-43,538.40-18,982.72

Finding the Fourth Proportional to 31,551.04, 43,538.40 and 18,982.72

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Solution

The fourth proportional to 31,551.04, 43,538.40 and 18,982.72 is: 26,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.04 : 43,538.40 = 18,982.72 : x
  2. Step 2: Convert to fraction form
    31,551.04/43,538.40 = 18,982.72/x
  3. Step 3: Cross multiply
    31,551.04x = 43,538.40 × 18,982.72
  4. Step 4: Simplify right side
    31,551.04x = 826,477,256.45
  5. Step 5: Solve for x
    x = 826,477,256.45/31,551.04
  6. Step 6: Final answer
    x = 26,194.93

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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.