Home / 28,996.84-40,014.30-16,421.68

Finding the Fourth Proportional to 28,996.84, 40,014.30 and 16,421.68

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Solution

The fourth proportional to 28,996.84, 40,014.30 and 16,421.68 is: 22,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.84 : 40,014.30 = 16,421.68 : x
  2. Step 2: Convert to fraction form
    28,996.84/40,014.30 = 16,421.68/x
  3. Step 3: Cross multiply
    28,996.84x = 40,014.30 × 16,421.68
  4. Step 4: Simplify right side
    28,996.84x = 657,102,030.02
  5. Step 5: Solve for x
    x = 657,102,030.02/28,996.84
  6. Step 6: Final answer
    x = 22,661.16

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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.