Home / 21,963.24-30,312-16,923.36

Finding the Fourth Proportional to 21,963.24, 30,312 and 16,923.36

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Solution

The fourth proportional to 21,963.24, 30,312 and 16,923.36 is: 23,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.24 : 30,312 = 16,923.36 : x
  2. Step 2: Convert to fraction form
    21,963.24/30,312 = 16,923.36/x
  3. Step 3: Cross multiply
    21,963.24x = 30,312 × 16,923.36
  4. Step 4: Simplify right side
    21,963.24x = 512,980,888.32
  5. Step 5: Solve for x
    x = 512,980,888.32/21,963.24
  6. Step 6: Final answer
    x = 23,356.34

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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.