Home / 30,985.92-46,511.64-19,307.34

Finding the Fourth Proportional to 30,985.92, 46,511.64 and 19,307.34

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Solution

The fourth proportional to 30,985.92, 46,511.64 and 19,307.34 is: 28,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985.92 : 46,511.64 = 19,307.34 : x
  2. Step 2: Convert to fraction form
    30,985.92/46,511.64 = 19,307.34/x
  3. Step 3: Cross multiply
    30,985.92x = 46,511.64 × 19,307.34
  4. Step 4: Simplify right side
    30,985.92x = 898,016,047.44
  5. Step 5: Solve for x
    x = 898,016,047.44/30,985.92
  6. Step 6: Final answer
    x = 28,981.42

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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.