Home / 25,886.80-38,830.20-16,555.60

Finding the Fourth Proportional to 25,886.80, 38,830.20 and 16,555.60

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Solution

The fourth proportional to 25,886.80, 38,830.20 and 16,555.60 is: 24,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.80 : 38,830.20 = 16,555.60 : x
  2. Step 2: Convert to fraction form
    25,886.80/38,830.20 = 16,555.60/x
  3. Step 3: Cross multiply
    25,886.80x = 38,830.20 × 16,555.60
  4. Step 4: Simplify right side
    25,886.80x = 642,857,259.12
  5. Step 5: Solve for x
    x = 642,857,259.12/25,886.80
  6. Step 6: Final answer
    x = 24,833.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.