Home / 30,835.18-42,549.28-17,405.58

Finding the Fourth Proportional to 30,835.18, 42,549.28 and 17,405.58

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Solution

The fourth proportional to 30,835.18, 42,549.28 and 17,405.58 is: 24,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,835.18 : 42,549.28 = 17,405.58 : x
  2. Step 2: Convert to fraction form
    30,835.18/42,549.28 = 17,405.58/x
  3. Step 3: Cross multiply
    30,835.18x = 42,549.28 × 17,405.58
  4. Step 4: Simplify right side
    30,835.18x = 740,594,896.98
  5. Step 5: Solve for x
    x = 740,594,896.98/30,835.18
  6. Step 6: Final answer
    x = 24,017.86

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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.