Home / 28,430.28-42,632.46-16,746.84

Finding the Fourth Proportional to 28,430.28, 42,632.46 and 16,746.84

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Solution

The fourth proportional to 28,430.28, 42,632.46 and 16,746.84 is: 25,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.28 : 42,632.46 = 16,746.84 : x
  2. Step 2: Convert to fraction form
    28,430.28/42,632.46 = 16,746.84/x
  3. Step 3: Cross multiply
    28,430.28x = 42,632.46 × 16,746.84
  4. Step 4: Simplify right side
    28,430.28x = 713,958,986.43
  5. Step 5: Solve for x
    x = 713,958,986.43/28,430.28
  6. Step 6: Final answer
    x = 25,112.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.