Home / 27,941.81-38,528.20-20,374.79

Finding the Fourth Proportional to 27,941.81, 38,528.20 and 20,374.79

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Solution

The fourth proportional to 27,941.81, 38,528.20 and 20,374.79 is: 28,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,941.81 : 38,528.20 = 20,374.79 : x
  2. Step 2: Convert to fraction form
    27,941.81/38,528.20 = 20,374.79/x
  3. Step 3: Cross multiply
    27,941.81x = 38,528.20 × 20,374.79
  4. Step 4: Simplify right side
    27,941.81x = 785,003,984.08
  5. Step 5: Solve for x
    x = 785,003,984.08/27,941.81
  6. Step 6: Final answer
    x = 28,094.24

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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.