Home / 28,871.79-39,847.02-16,125.75

Finding the Fourth Proportional to 28,871.79, 39,847.02 and 16,125.75

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Solution

The fourth proportional to 28,871.79, 39,847.02 and 16,125.75 is: 22,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.79 : 39,847.02 = 16,125.75 : x
  2. Step 2: Convert to fraction form
    28,871.79/39,847.02 = 16,125.75/x
  3. Step 3: Cross multiply
    28,871.79x = 39,847.02 × 16,125.75
  4. Step 4: Simplify right side
    28,871.79x = 642,563,082.77
  5. Step 5: Solve for x
    x = 642,563,082.77/28,871.79
  6. Step 6: Final answer
    x = 22,255.74

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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.