Home / 31,289.48-43,173.01-17,865.10

Finding the Fourth Proportional to 31,289.48, 43,173.01 and 17,865.10

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Solution

The fourth proportional to 31,289.48, 43,173.01 and 17,865.10 is: 24,650.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.48 : 43,173.01 = 17,865.10 : x
  2. Step 2: Convert to fraction form
    31,289.48/43,173.01 = 17,865.10/x
  3. Step 3: Cross multiply
    31,289.48x = 43,173.01 × 17,865.10
  4. Step 4: Simplify right side
    31,289.48x = 771,290,140.95
  5. Step 5: Solve for x
    x = 771,290,140.95/31,289.48
  6. Step 6: Final answer
    x = 24,650.14

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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.