Home / 21,477.08-29,640.36-12,527.48

Finding the Fourth Proportional to 21,477.08, 29,640.36 and 12,527.48

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Solution

The fourth proportional to 21,477.08, 29,640.36 and 12,527.48 is: 17,289.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.08 : 29,640.36 = 12,527.48 : x
  2. Step 2: Convert to fraction form
    21,477.08/29,640.36 = 12,527.48/x
  3. Step 3: Cross multiply
    21,477.08x = 29,640.36 × 12,527.48
  4. Step 4: Simplify right side
    21,477.08x = 371,319,017.09
  5. Step 5: Solve for x
    x = 371,319,017.09/21,477.08
  6. Step 6: Final answer
    x = 17,289.08

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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.