Home / 30,983.06-42,756.54-16,835.91

Finding the Fourth Proportional to 30,983.06, 42,756.54 and 16,835.91

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Solution

The fourth proportional to 30,983.06, 42,756.54 and 16,835.91 is: 23,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.06 : 42,756.54 = 16,835.91 : x
  2. Step 2: Convert to fraction form
    30,983.06/42,756.54 = 16,835.91/x
  3. Step 3: Cross multiply
    30,983.06x = 42,756.54 × 16,835.91
  4. Step 4: Simplify right side
    30,983.06x = 719,845,259.35
  5. Step 5: Solve for x
    x = 719,845,259.35/30,983.06
  6. Step 6: Final answer
    x = 23,233.51

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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.