Home / 30,576.02-42,192.45-16,964.50

Finding the Fourth Proportional to 30,576.02, 42,192.45 and 16,964.50

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Solution

The fourth proportional to 30,576.02, 42,192.45 and 16,964.50 is: 23,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.02 : 42,192.45 = 16,964.50 : x
  2. Step 2: Convert to fraction form
    30,576.02/42,192.45 = 16,964.50/x
  3. Step 3: Cross multiply
    30,576.02x = 42,192.45 × 16,964.50
  4. Step 4: Simplify right side
    30,576.02x = 715,773,818.03
  5. Step 5: Solve for x
    x = 715,773,818.03/30,576.02
  6. Step 6: Final answer
    x = 23,409.65

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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.