Home / 28,347.80-42,526.20-9,629.60

Finding the Fourth Proportional to 28,347.80, 42,526.20 and 9,629.60

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Solution

The fourth proportional to 28,347.80, 42,526.20 and 9,629.60 is: 14,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.80 : 42,526.20 = 9,629.60 : x
  2. Step 2: Convert to fraction form
    28,347.80/42,526.20 = 9,629.60/x
  3. Step 3: Cross multiply
    28,347.80x = 42,526.20 × 9,629.60
  4. Step 4: Simplify right side
    28,347.80x = 409,510,295.52
  5. Step 5: Solve for x
    x = 409,510,295.52/28,347.80
  6. Step 6: Final answer
    x = 14,445.93

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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.