Home / 39,709.04-54,800.48-21,803.92

Finding the Fourth Proportional to 39,709.04, 54,800.48 and 21,803.92

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Solution

The fourth proportional to 39,709.04, 54,800.48 and 21,803.92 is: 30,090.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,709.04 : 54,800.48 = 21,803.92 : x
  2. Step 2: Convert to fraction form
    39,709.04/54,800.48 = 21,803.92/x
  3. Step 3: Cross multiply
    39,709.04x = 54,800.48 × 21,803.92
  4. Step 4: Simplify right side
    39,709.04x = 1,194,865,281.88
  5. Step 5: Solve for x
    x = 1,194,865,281.88/39,709.04
  6. Step 6: Final answer
    x = 30,090.51

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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.