Home / 28,058.15-42,087.20-10,289.58

Finding the Fourth Proportional to 28,058.15, 42,087.20 and 10,289.58

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Solution

The fourth proportional to 28,058.15, 42,087.20 and 10,289.58 is: 15,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058.15 : 42,087.20 = 10,289.58 : x
  2. Step 2: Convert to fraction form
    28,058.15/42,087.20 = 10,289.58/x
  3. Step 3: Cross multiply
    28,058.15x = 42,087.20 × 10,289.58
  4. Step 4: Simplify right side
    28,058.15x = 433,059,638.84
  5. Step 5: Solve for x
    x = 433,059,638.84/28,058.15
  6. Step 6: Final answer
    x = 15,434.36

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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.