Home / 42,974.04-64,480.14-16,680.78

Finding the Fourth Proportional to 42,974.04, 64,480.14 and 16,680.78

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Solution

The fourth proportional to 42,974.04, 64,480.14 and 16,680.78 is: 25,028.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,974.04 : 64,480.14 = 16,680.78 : x
  2. Step 2: Convert to fraction form
    42,974.04/64,480.14 = 16,680.78/x
  3. Step 3: Cross multiply
    42,974.04x = 64,480.14 × 16,680.78
  4. Step 4: Simplify right side
    42,974.04x = 1,075,579,029.71
  5. Step 5: Solve for x
    x = 1,075,579,029.71/42,974.04
  6. Step 6: Final answer
    x = 25,028.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.