Home / 31,056.54-42,859.20-17,628.36

Finding the Fourth Proportional to 31,056.54, 42,859.20 and 17,628.36

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Solution

The fourth proportional to 31,056.54, 42,859.20 and 17,628.36 is: 24,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056.54 : 42,859.20 = 17,628.36 : x
  2. Step 2: Convert to fraction form
    31,056.54/42,859.20 = 17,628.36/x
  3. Step 3: Cross multiply
    31,056.54x = 42,859.20 × 17,628.36
  4. Step 4: Simplify right side
    31,056.54x = 755,537,406.91
  5. Step 5: Solve for x
    x = 755,537,406.91/31,056.54
  6. Step 6: Final answer
    x = 24,327.80

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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.