Home / 31,327.19-43,247.27-20,430.26

Finding the Fourth Proportional to 31,327.19, 43,247.27 and 20,430.26

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Solution

The fourth proportional to 31,327.19, 43,247.27 and 20,430.26 is: 28,204.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,327.19 : 43,247.27 = 20,430.26 : x
  2. Step 2: Convert to fraction form
    31,327.19/43,247.27 = 20,430.26/x
  3. Step 3: Cross multiply
    31,327.19x = 43,247.27 × 20,430.26
  4. Step 4: Simplify right side
    31,327.19x = 883,552,852.49
  5. Step 5: Solve for x
    x = 883,552,852.49/31,327.19
  6. Step 6: Final answer
    x = 28,204.03

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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.