Home / 31,668.95-43,708.48-20,341.06

Finding the Fourth Proportional to 31,668.95, 43,708.48 and 20,341.06

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Solution

The fourth proportional to 31,668.95, 43,708.48 and 20,341.06 is: 28,074.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,668.95 : 43,708.48 = 20,341.06 : x
  2. Step 2: Convert to fraction form
    31,668.95/43,708.48 = 20,341.06/x
  3. Step 3: Cross multiply
    31,668.95x = 43,708.48 × 20,341.06
  4. Step 4: Simplify right side
    31,668.95x = 889,076,654.06
  5. Step 5: Solve for x
    x = 889,076,654.06/31,668.95
  6. Step 6: Final answer
    x = 28,074.08

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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.