Home / 28,412.76-42,638.58-14,571.48

Finding the Fourth Proportional to 28,412.76, 42,638.58 and 14,571.48

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Solution

The fourth proportional to 28,412.76, 42,638.58 and 14,571.48 is: 21,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,412.76 : 42,638.58 = 14,571.48 : x
  2. Step 2: Convert to fraction form
    28,412.76/42,638.58 = 14,571.48/x
  3. Step 3: Cross multiply
    28,412.76x = 42,638.58 × 14,571.48
  4. Step 4: Simplify right side
    28,412.76x = 621,307,215.70
  5. Step 5: Solve for x
    x = 621,307,215.70/28,412.76
  6. Step 6: Final answer
    x = 21,867.19

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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.