Home / 30,428.02-41,990.47-16,999.17

Finding the Fourth Proportional to 30,428.02, 41,990.47 and 16,999.17

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Solution

The fourth proportional to 30,428.02, 41,990.47 and 16,999.17 is: 23,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.02 : 41,990.47 = 16,999.17 : x
  2. Step 2: Convert to fraction form
    30,428.02/41,990.47 = 16,999.17/x
  3. Step 3: Cross multiply
    30,428.02x = 41,990.47 × 16,999.17
  4. Step 4: Simplify right side
    30,428.02x = 713,803,137.91
  5. Step 5: Solve for x
    x = 713,803,137.91/30,428.02
  6. Step 6: Final answer
    x = 23,458.74

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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.