Home / 30,905.46-42,649.56-16,758.36

Finding the Fourth Proportional to 30,905.46, 42,649.56 and 16,758.36

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Solution

The fourth proportional to 30,905.46, 42,649.56 and 16,758.36 is: 23,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.46 : 42,649.56 = 16,758.36 : x
  2. Step 2: Convert to fraction form
    30,905.46/42,649.56 = 16,758.36/x
  3. Step 3: Cross multiply
    30,905.46x = 42,649.56 × 16,758.36
  4. Step 4: Simplify right side
    30,905.46x = 714,736,680.32
  5. Step 5: Solve for x
    x = 714,736,680.32/30,905.46
  6. Step 6: Final answer
    x = 23,126.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.