Home / 28,254.72-42,354.48-13,459.68

Finding the Fourth Proportional to 28,254.72, 42,354.48 and 13,459.68

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Solution

The fourth proportional to 28,254.72, 42,354.48 and 13,459.68 is: 20,176.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.72 : 42,354.48 = 13,459.68 : x
  2. Step 2: Convert to fraction form
    28,254.72/42,354.48 = 13,459.68/x
  3. Step 3: Cross multiply
    28,254.72x = 42,354.48 × 13,459.68
  4. Step 4: Simplify right side
    28,254.72x = 570,077,747.37
  5. Step 5: Solve for x
    x = 570,077,747.37/28,254.72
  6. Step 6: Final answer
    x = 20,176.37

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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.