Home / 28,303.20-42,453.45-9,581.40

Finding the Fourth Proportional to 28,303.20, 42,453.45 and 9,581.40

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Solution

The fourth proportional to 28,303.20, 42,453.45 and 9,581.40 is: 14,371.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.20 : 42,453.45 = 9,581.40 : x
  2. Step 2: Convert to fraction form
    28,303.20/42,453.45 = 9,581.40/x
  3. Step 3: Cross multiply
    28,303.20x = 42,453.45 × 9,581.40
  4. Step 4: Simplify right side
    28,303.20x = 406,763,485.83
  5. Step 5: Solve for x
    x = 406,763,485.83/28,303.20
  6. Step 6: Final answer
    x = 14,371.64

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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.