Home / 28,499.30-42,749.69-13,502.91

Finding the Fourth Proportional to 28,499.30, 42,749.69 and 13,502.91

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Solution

The fourth proportional to 28,499.30, 42,749.69 and 13,502.91 is: 20,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.30 : 42,749.69 = 13,502.91 : x
  2. Step 2: Convert to fraction form
    28,499.30/42,749.69 = 13,502.91/x
  3. Step 3: Cross multiply
    28,499.30x = 42,749.69 × 13,502.91
  4. Step 4: Simplify right side
    28,499.30x = 577,245,216.60
  5. Step 5: Solve for x
    x = 577,245,216.60/28,499.30
  6. Step 6: Final answer
    x = 20,254.72

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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.