Home / 31,056.63-42,858.09-16,909.44

Finding the Fourth Proportional to 31,056.63, 42,858.09 and 16,909.44

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Solution

The fourth proportional to 31,056.63, 42,858.09 and 16,909.44 is: 23,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056.63 : 42,858.09 = 16,909.44 : x
  2. Step 2: Convert to fraction form
    31,056.63/42,858.09 = 16,909.44/x
  3. Step 3: Cross multiply
    31,056.63x = 42,858.09 × 16,909.44
  4. Step 4: Simplify right side
    31,056.63x = 724,706,301.37
  5. Step 5: Solve for x
    x = 724,706,301.37/31,056.63
  6. Step 6: Final answer
    x = 23,334.99

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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.