Home / 30,525.04-42,123.92-16,912.72

Finding the Fourth Proportional to 30,525.04, 42,123.92 and 16,912.72

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Solution

The fourth proportional to 30,525.04, 42,123.92 and 16,912.72 is: 23,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.04 : 42,123.92 = 16,912.72 : x
  2. Step 2: Convert to fraction form
    30,525.04/42,123.92 = 16,912.72/x
  3. Step 3: Cross multiply
    30,525.04x = 42,123.92 × 16,912.72
  4. Step 4: Simplify right side
    30,525.04x = 712,430,064.26
  5. Step 5: Solve for x
    x = 712,430,064.26/30,525.04
  6. Step 6: Final answer
    x = 23,339.20

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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.