Home / 19,004.64-28,475.79-13,430.76

Finding the Fourth Proportional to 19,004.64, 28,475.79 and 13,430.76

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Solution

The fourth proportional to 19,004.64, 28,475.79 and 13,430.76 is: 20,124.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,004.64 : 28,475.79 = 13,430.76 : x
  2. Step 2: Convert to fraction form
    19,004.64/28,475.79 = 13,430.76/x
  3. Step 3: Cross multiply
    19,004.64x = 28,475.79 × 13,430.76
  4. Step 4: Simplify right side
    19,004.64x = 382,451,501.30
  5. Step 5: Solve for x
    x = 382,451,501.30/19,004.64
  6. Step 6: Final answer
    x = 20,124.11

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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.