Home / 18,749.12-28,252.48-15,534.40

Finding the Fourth Proportional to 18,749.12, 28,252.48 and 15,534.40

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Solution

The fourth proportional to 18,749.12, 28,252.48 and 15,534.40 is: 23,408.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.12 : 28,252.48 = 15,534.40 : x
  2. Step 2: Convert to fraction form
    18,749.12/28,252.48 = 15,534.40/x
  3. Step 3: Cross multiply
    18,749.12x = 28,252.48 × 15,534.40
  4. Step 4: Simplify right side
    18,749.12x = 438,885,325.31
  5. Step 5: Solve for x
    x = 438,885,325.31/18,749.12
  6. Step 6: Final answer
    x = 23,408.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.