Home / 31,334.16-43,242.48-18,756.48

Finding the Fourth Proportional to 31,334.16, 43,242.48 and 18,756.48

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Solution

The fourth proportional to 31,334.16, 43,242.48 and 18,756.48 is: 25,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,334.16 : 43,242.48 = 18,756.48 : x
  2. Step 2: Convert to fraction form
    31,334.16/43,242.48 = 18,756.48/x
  3. Step 3: Cross multiply
    31,334.16x = 43,242.48 × 18,756.48
  4. Step 4: Simplify right side
    31,334.16x = 811,076,711.27
  5. Step 5: Solve for x
    x = 811,076,711.27/31,334.16
  6. Step 6: Final answer
    x = 25,884.74

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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.