Home / 28,994.32-40,012.68-16,421.68

Finding the Fourth Proportional to 28,994.32, 40,012.68 and 16,421.68

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Solution

The fourth proportional to 28,994.32, 40,012.68 and 16,421.68 is: 22,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994.32 : 40,012.68 = 16,421.68 : x
  2. Step 2: Convert to fraction form
    28,994.32/40,012.68 = 16,421.68/x
  3. Step 3: Cross multiply
    28,994.32x = 40,012.68 × 16,421.68
  4. Step 4: Simplify right side
    28,994.32x = 657,075,426.90
  5. Step 5: Solve for x
    x = 657,075,426.90/28,994.32
  6. Step 6: Final answer
    x = 22,662.21

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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.