Home / 28,254.40-42,354.60-10,480.30

Finding the Fourth Proportional to 28,254.40, 42,354.60 and 10,480.30

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Solution

The fourth proportional to 28,254.40, 42,354.60 and 10,480.30 is: 15,710.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.40 : 42,354.60 = 10,480.30 : x
  2. Step 2: Convert to fraction form
    28,254.40/42,354.60 = 10,480.30/x
  3. Step 3: Cross multiply
    28,254.40x = 42,354.60 × 10,480.30
  4. Step 4: Simplify right side
    28,254.40x = 443,888,914.38
  5. Step 5: Solve for x
    x = 443,888,914.38/28,254.40
  6. Step 6: Final answer
    x = 15,710.43

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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.