Home / 30,428.64-45,635.52-15,618.72

Finding the Fourth Proportional to 30,428.64, 45,635.52 and 15,618.72

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Solution

The fourth proportional to 30,428.64, 45,635.52 and 15,618.72 is: 23,424.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.64 : 45,635.52 = 15,618.72 : x
  2. Step 2: Convert to fraction form
    30,428.64/45,635.52 = 15,618.72/x
  3. Step 3: Cross multiply
    30,428.64x = 45,635.52 × 15,618.72
  4. Step 4: Simplify right side
    30,428.64x = 712,768,408.93
  5. Step 5: Solve for x
    x = 712,768,408.93/30,428.64
  6. Step 6: Final answer
    x = 23,424.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.