Home / 31,483.08-43,445.70-17,142.30

Finding the Fourth Proportional to 31,483.08, 43,445.70 and 17,142.30

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Solution

The fourth proportional to 31,483.08, 43,445.70 and 17,142.30 is: 23,655.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,483.08 : 43,445.70 = 17,142.30 : x
  2. Step 2: Convert to fraction form
    31,483.08/43,445.70 = 17,142.30/x
  3. Step 3: Cross multiply
    31,483.08x = 43,445.70 × 17,142.30
  4. Step 4: Simplify right side
    31,483.08x = 744,759,223.11
  5. Step 5: Solve for x
    x = 744,759,223.11/31,483.08
  6. Step 6: Final answer
    x = 23,655.86

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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.