Home / 21,516.95-32,280.61-7,474.94

Finding the Fourth Proportional to 21,516.95, 32,280.61 and 7,474.94

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Solution

The fourth proportional to 21,516.95, 32,280.61 and 7,474.94 is: 11,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.95 : 32,280.61 = 7,474.94 : x
  2. Step 2: Convert to fraction form
    21,516.95/32,280.61 = 7,474.94/x
  3. Step 3: Cross multiply
    21,516.95x = 32,280.61 × 7,474.94
  4. Step 4: Simplify right side
    21,516.95x = 241,295,461.51
  5. Step 5: Solve for x
    x = 241,295,461.51/21,516.95
  6. Step 6: Final answer
    x = 11,214.21

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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.