Home / 15,628.51-21,577.43-13,947.06

Finding the Fourth Proportional to 15,628.51, 21,577.43 and 13,947.06

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Solution

The fourth proportional to 15,628.51, 21,577.43 and 13,947.06 is: 19,255.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.51 : 21,577.43 = 13,947.06 : x
  2. Step 2: Convert to fraction form
    15,628.51/21,577.43 = 13,947.06/x
  3. Step 3: Cross multiply
    15,628.51x = 21,577.43 × 13,947.06
  4. Step 4: Simplify right side
    15,628.51x = 300,941,710.86
  5. Step 5: Solve for x
    x = 300,941,710.86/15,628.51
  6. Step 6: Final answer
    x = 19,255.94

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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.