Home / 30,756.06-42,443.36-16,608.90

Finding the Fourth Proportional to 30,756.06, 42,443.36 and 16,608.90

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Solution

The fourth proportional to 30,756.06, 42,443.36 and 16,608.90 is: 22,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,756.06 : 42,443.36 = 16,608.90 : x
  2. Step 2: Convert to fraction form
    30,756.06/42,443.36 = 16,608.90/x
  3. Step 3: Cross multiply
    30,756.06x = 42,443.36 × 16,608.90
  4. Step 4: Simplify right side
    30,756.06x = 704,937,670.69
  5. Step 5: Solve for x
    x = 704,937,670.69/30,756.06
  6. Step 6: Final answer
    x = 22,920.29

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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.