Home / 28,320.63-42,485.80-8,601.18

Finding the Fourth Proportional to 28,320.63, 42,485.80 and 8,601.18

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Solution

The fourth proportional to 28,320.63, 42,485.80 and 8,601.18 is: 12,903.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.63 : 42,485.80 = 8,601.18 : x
  2. Step 2: Convert to fraction form
    28,320.63/42,485.80 = 8,601.18/x
  3. Step 3: Cross multiply
    28,320.63x = 42,485.80 × 8,601.18
  4. Step 4: Simplify right side
    28,320.63x = 365,428,013.24
  5. Step 5: Solve for x
    x = 365,428,013.24/28,320.63
  6. Step 6: Final answer
    x = 12,903.24

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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.