Home / 28,488.40-42,732.60-16,200.40

Finding the Fourth Proportional to 28,488.40, 42,732.60 and 16,200.40

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Solution

The fourth proportional to 28,488.40, 42,732.60 and 16,200.40 is: 24,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.40 : 42,732.60 = 16,200.40 : x
  2. Step 2: Convert to fraction form
    28,488.40/42,732.60 = 16,200.40/x
  3. Step 3: Cross multiply
    28,488.40x = 42,732.60 × 16,200.40
  4. Step 4: Simplify right side
    28,488.40x = 692,285,213.04
  5. Step 5: Solve for x
    x = 692,285,213.04/28,488.40
  6. Step 6: Final answer
    x = 24,300.60

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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.