Home / 30,740.24-42,421.08-17,311.52

Finding the Fourth Proportional to 30,740.24, 42,421.08 and 17,311.52

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Solution

The fourth proportional to 30,740.24, 42,421.08 and 17,311.52 is: 23,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.24 : 42,421.08 = 17,311.52 : x
  2. Step 2: Convert to fraction form
    30,740.24/42,421.08 = 17,311.52/x
  3. Step 3: Cross multiply
    30,740.24x = 42,421.08 × 17,311.52
  4. Step 4: Simplify right side
    30,740.24x = 734,373,374.84
  5. Step 5: Solve for x
    x = 734,373,374.84/30,740.24
  6. Step 6: Final answer
    x = 23,889.64

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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.