Home / 28,461.34-39,277.20-16,520.32

Finding the Fourth Proportional to 28,461.34, 39,277.20 and 16,520.32

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Solution

The fourth proportional to 28,461.34, 39,277.20 and 16,520.32 is: 22,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.34 : 39,277.20 = 16,520.32 : x
  2. Step 2: Convert to fraction form
    28,461.34/39,277.20 = 16,520.32/x
  3. Step 3: Cross multiply
    28,461.34x = 39,277.20 × 16,520.32
  4. Step 4: Simplify right side
    28,461.34x = 648,871,912.70
  5. Step 5: Solve for x
    x = 648,871,912.70/28,461.34
  6. Step 6: Final answer
    x = 22,798.36

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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.