Home / 28,660.20-42,973.02-13,090.92

Finding the Fourth Proportional to 28,660.20, 42,973.02 and 13,090.92

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Solution

The fourth proportional to 28,660.20, 42,973.02 and 13,090.92 is: 19,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.20 : 42,973.02 = 13,090.92 : x
  2. Step 2: Convert to fraction form
    28,660.20/42,973.02 = 13,090.92/x
  3. Step 3: Cross multiply
    28,660.20x = 42,973.02 × 13,090.92
  4. Step 4: Simplify right side
    28,660.20x = 562,556,366.98
  5. Step 5: Solve for x
    x = 562,556,366.98/28,660.20
  6. Step 6: Final answer
    x = 19,628.49

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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.