Home / 28,870.75-39,845.64-16,124.75

Finding the Fourth Proportional to 28,870.75, 39,845.64 and 16,124.75

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Solution

The fourth proportional to 28,870.75, 39,845.64 and 16,124.75 is: 22,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.75 : 39,845.64 = 16,124.75 : x
  2. Step 2: Convert to fraction form
    28,870.75/39,845.64 = 16,124.75/x
  3. Step 3: Cross multiply
    28,870.75x = 39,845.64 × 16,124.75
  4. Step 4: Simplify right side
    28,870.75x = 642,501,127.68
  5. Step 5: Solve for x
    x = 642,501,127.68/28,870.75
  6. Step 6: Final answer
    x = 22,254.40

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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.