Home / 30,905.23-42,649.23-16,758.07

Finding the Fourth Proportional to 30,905.23, 42,649.23 and 16,758.07

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Solution

The fourth proportional to 30,905.23, 42,649.23 and 16,758.07 is: 23,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.23 : 42,649.23 = 16,758.07 : x
  2. Step 2: Convert to fraction form
    30,905.23/42,649.23 = 16,758.07/x
  3. Step 3: Cross multiply
    30,905.23x = 42,649.23 × 16,758.07
  4. Step 4: Simplify right side
    30,905.23x = 714,718,568.54
  5. Step 5: Solve for x
    x = 714,718,568.54/30,905.23
  6. Step 6: Final answer
    x = 23,126.14

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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.