Home / 20,632.04-28,457.50-18,936.02

Finding the Fourth Proportional to 20,632.04, 28,457.50 and 18,936.02

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Solution

The fourth proportional to 20,632.04, 28,457.50 and 18,936.02 is: 26,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632.04 : 28,457.50 = 18,936.02 : x
  2. Step 2: Convert to fraction form
    20,632.04/28,457.50 = 18,936.02/x
  3. Step 3: Cross multiply
    20,632.04x = 28,457.50 × 18,936.02
  4. Step 4: Simplify right side
    20,632.04x = 538,871,789.15
  5. Step 5: Solve for x
    x = 538,871,789.15/20,632.04
  6. Step 6: Final answer
    x = 26,118.20

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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.