Home / 21,477.52-29,639.73-12,523.60

Finding the Fourth Proportional to 21,477.52, 29,639.73 and 12,523.60

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Solution

The fourth proportional to 21,477.52, 29,639.73 and 12,523.60 is: 17,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.52 : 29,639.73 = 12,523.60 : x
  2. Step 2: Convert to fraction form
    21,477.52/29,639.73 = 12,523.60/x
  3. Step 3: Cross multiply
    21,477.52x = 29,639.73 × 12,523.60
  4. Step 4: Simplify right side
    21,477.52x = 371,196,122.63
  5. Step 5: Solve for x
    x = 371,196,122.63/21,477.52
  6. Step 6: Final answer
    x = 17,283.01

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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.