Home / 28,451.94-39,267.63-15,877.50

Finding the Fourth Proportional to 28,451.94, 39,267.63 and 15,877.50

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Solution

The fourth proportional to 28,451.94, 39,267.63 and 15,877.50 is: 21,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.94 : 39,267.63 = 15,877.50 : x
  2. Step 2: Convert to fraction form
    28,451.94/39,267.63 = 15,877.50/x
  3. Step 3: Cross multiply
    28,451.94x = 39,267.63 × 15,877.50
  4. Step 4: Simplify right side
    28,451.94x = 623,471,795.33
  5. Step 5: Solve for x
    x = 623,471,795.33/28,451.94
  6. Step 6: Final answer
    x = 21,913.16

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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.