Home / 28,573.54-42,870.41-12,777.18

Finding the Fourth Proportional to 28,573.54, 42,870.41 and 12,777.18

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Solution

The fourth proportional to 28,573.54, 42,870.41 and 12,777.18 is: 19,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.54 : 42,870.41 = 12,777.18 : x
  2. Step 2: Convert to fraction form
    28,573.54/42,870.41 = 12,777.18/x
  3. Step 3: Cross multiply
    28,573.54x = 42,870.41 × 12,777.18
  4. Step 4: Simplify right side
    28,573.54x = 547,762,768.51
  5. Step 5: Solve for x
    x = 547,762,768.51/28,573.54
  6. Step 6: Final answer
    x = 19,170.28

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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.