Home / 31,784.58-43,866.18-17,638.74

Finding the Fourth Proportional to 31,784.58, 43,866.18 and 17,638.74

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Solution

The fourth proportional to 31,784.58, 43,866.18 and 17,638.74 is: 24,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,784.58 : 43,866.18 = 17,638.74 : x
  2. Step 2: Convert to fraction form
    31,784.58/43,866.18 = 17,638.74/x
  3. Step 3: Cross multiply
    31,784.58x = 43,866.18 × 17,638.74
  4. Step 4: Simplify right side
    31,784.58x = 773,744,143.81
  5. Step 5: Solve for x
    x = 773,744,143.81/31,784.58
  6. Step 6: Final answer
    x = 24,343.38

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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.