Home / 30,455.29-45,690.72-11,730.30

Finding the Fourth Proportional to 30,455.29, 45,690.72 and 11,730.30

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Solution

The fourth proportional to 30,455.29, 45,690.72 and 11,730.30 is: 17,598.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.29 : 45,690.72 = 11,730.30 : x
  2. Step 2: Convert to fraction form
    30,455.29/45,690.72 = 11,730.30/x
  3. Step 3: Cross multiply
    30,455.29x = 45,690.72 × 11,730.30
  4. Step 4: Simplify right side
    30,455.29x = 535,965,911.58
  5. Step 5: Solve for x
    x = 535,965,911.58/30,455.29
  6. Step 6: Final answer
    x = 17,598.45

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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.