Home / 28,911.24-43,366.16-13,328.88

Finding the Fourth Proportional to 28,911.24, 43,366.16 and 13,328.88

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Solution

The fourth proportional to 28,911.24, 43,366.16 and 13,328.88 is: 19,993.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.24 : 43,366.16 = 13,328.88 : x
  2. Step 2: Convert to fraction form
    28,911.24/43,366.16 = 13,328.88/x
  3. Step 3: Cross multiply
    28,911.24x = 43,366.16 × 13,328.88
  4. Step 4: Simplify right side
    28,911.24x = 578,022,342.70
  5. Step 5: Solve for x
    x = 578,022,342.70/28,911.24
  6. Step 6: Final answer
    x = 19,993.00

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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.