Home / 21,073.08-29,084.93-13,528.95

Finding the Fourth Proportional to 21,073.08, 29,084.93 and 13,528.95

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Solution

The fourth proportional to 21,073.08, 29,084.93 and 13,528.95 is: 18,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073.08 : 29,084.93 = 13,528.95 : x
  2. Step 2: Convert to fraction form
    21,073.08/29,084.93 = 13,528.95/x
  3. Step 3: Cross multiply
    21,073.08x = 29,084.93 × 13,528.95
  4. Step 4: Simplify right side
    21,073.08x = 393,488,563.72
  5. Step 5: Solve for x
    x = 393,488,563.72/21,073.08
  6. Step 6: Final answer
    x = 18,672.57

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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.