Home / 28,499.19-42,749.51-13,502.79

Finding the Fourth Proportional to 28,499.19, 42,749.51 and 13,502.79

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Solution

The fourth proportional to 28,499.19, 42,749.51 and 13,502.79 is: 20,254.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499.19 : 42,749.51 = 13,502.79 : x
  2. Step 2: Convert to fraction form
    28,499.19/42,749.51 = 13,502.79/x
  3. Step 3: Cross multiply
    28,499.19x = 42,749.51 × 13,502.79
  4. Step 4: Simplify right side
    28,499.19x = 577,237,588.62
  5. Step 5: Solve for x
    x = 577,237,588.62/28,499.19
  6. Step 6: Final answer
    x = 20,254.53

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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.