Home / 28,649.32-42,973.26-8,927.80

Finding the Fourth Proportional to 28,649.32, 42,973.26 and 8,927.80

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Solution

The fourth proportional to 28,649.32, 42,973.26 and 8,927.80 is: 13,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.32 : 42,973.26 = 8,927.80 : x
  2. Step 2: Convert to fraction form
    28,649.32/42,973.26 = 8,927.80/x
  3. Step 3: Cross multiply
    28,649.32x = 42,973.26 × 8,927.80
  4. Step 4: Simplify right side
    28,649.32x = 383,656,670.63
  5. Step 5: Solve for x
    x = 383,656,670.63/28,649.32
  6. Step 6: Final answer
    x = 13,391.48

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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.