Home / 14,415.76-21,630.36-14,182.80

Finding the Fourth Proportional to 14,415.76, 21,630.36 and 14,182.80

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Solution

The fourth proportional to 14,415.76, 21,630.36 and 14,182.80 is: 21,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.76 : 21,630.36 = 14,182.80 : x
  2. Step 2: Convert to fraction form
    14,415.76/21,630.36 = 14,182.80/x
  3. Step 3: Cross multiply
    14,415.76x = 21,630.36 × 14,182.80
  4. Step 4: Simplify right side
    14,415.76x = 306,779,069.81
  5. Step 5: Solve for x
    x = 306,779,069.81/14,415.76
  6. Step 6: Final answer
    x = 21,280.81

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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.