Home / 28,040.94-38,688.66-16,707.72

Finding the Fourth Proportional to 28,040.94, 38,688.66 and 16,707.72

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Solution

The fourth proportional to 28,040.94, 38,688.66 and 16,707.72 is: 23,051.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.94 : 38,688.66 = 16,707.72 : x
  2. Step 2: Convert to fraction form
    28,040.94/38,688.66 = 16,707.72/x
  3. Step 3: Cross multiply
    28,040.94x = 38,688.66 × 16,707.72
  4. Step 4: Simplify right side
    28,040.94x = 646,399,298.46
  5. Step 5: Solve for x
    x = 646,399,298.46/28,040.94
  6. Step 6: Final answer
    x = 23,051.98

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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.