Home / 28,997.09-40,014.64-16,421.93

Finding the Fourth Proportional to 28,997.09, 40,014.64 and 16,421.93

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Solution

The fourth proportional to 28,997.09, 40,014.64 and 16,421.93 is: 22,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.09 : 40,014.64 = 16,421.93 : x
  2. Step 2: Convert to fraction form
    28,997.09/40,014.64 = 16,421.93/x
  3. Step 3: Cross multiply
    28,997.09x = 40,014.64 × 16,421.93
  4. Step 4: Simplify right side
    28,997.09x = 657,117,617.06
  5. Step 5: Solve for x
    x = 657,117,617.06/28,997.09
  6. Step 6: Final answer
    x = 22,661.50

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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.