Home / 28,672.22-42,966.63-12,642.24

Finding the Fourth Proportional to 28,672.22, 42,966.63 and 12,642.24

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Solution

The fourth proportional to 28,672.22, 42,966.63 and 12,642.24 is: 18,944.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672.22 : 42,966.63 = 12,642.24 : x
  2. Step 2: Convert to fraction form
    28,672.22/42,966.63 = 12,642.24/x
  3. Step 3: Cross multiply
    28,672.22x = 42,966.63 × 12,642.24
  4. Step 4: Simplify right side
    28,672.22x = 543,194,448.45
  5. Step 5: Solve for x
    x = 543,194,448.45/28,672.22
  6. Step 6: Final answer
    x = 18,944.98

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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.