Home / 30,868.44-42,598.65-16,721.28

Finding the Fourth Proportional to 30,868.44, 42,598.65 and 16,721.28

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Solution

The fourth proportional to 30,868.44, 42,598.65 and 16,721.28 is: 23,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.44 : 42,598.65 = 16,721.28 : x
  2. Step 2: Convert to fraction form
    30,868.44/42,598.65 = 16,721.28/x
  3. Step 3: Cross multiply
    30,868.44x = 42,598.65 × 16,721.28
  4. Step 4: Simplify right side
    30,868.44x = 712,303,954.27
  5. Step 5: Solve for x
    x = 712,303,954.27/30,868.44
  6. Step 6: Final answer
    x = 23,075.48

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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.