Home / 31,325.63-43,228.89-16,985.05

Finding the Fourth Proportional to 31,325.63, 43,228.89 and 16,985.05

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Solution

The fourth proportional to 31,325.63, 43,228.89 and 16,985.05 is: 23,439.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.63 : 43,228.89 = 16,985.05 : x
  2. Step 2: Convert to fraction form
    31,325.63/43,228.89 = 16,985.05/x
  3. Step 3: Cross multiply
    31,325.63x = 43,228.89 × 16,985.05
  4. Step 4: Simplify right side
    31,325.63x = 734,244,750.02
  5. Step 5: Solve for x
    x = 734,244,750.02/31,325.63
  6. Step 6: Final answer
    x = 23,439.11

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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.