Home / 28,228.80-42,343.20-27,710.40

Finding the Fourth Proportional to 28,228.80, 42,343.20 and 27,710.40

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Solution

The fourth proportional to 28,228.80, 42,343.20 and 27,710.40 is: 41,565.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.80 : 42,343.20 = 27,710.40 : x
  2. Step 2: Convert to fraction form
    28,228.80/42,343.20 = 27,710.40/x
  3. Step 3: Cross multiply
    28,228.80x = 42,343.20 × 27,710.40
  4. Step 4: Simplify right side
    28,228.80x = 1,173,347,009.28
  5. Step 5: Solve for x
    x = 1,173,347,009.28/28,228.80
  6. Step 6: Final answer
    x = 41,565.60

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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.