Home / 28,686.10-43,008.18-19,302.79

Finding the Fourth Proportional to 28,686.10, 43,008.18 and 19,302.79

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Solution

The fourth proportional to 28,686.10, 43,008.18 and 19,302.79 is: 28,940.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.10 : 43,008.18 = 19,302.79 : x
  2. Step 2: Convert to fraction form
    28,686.10/43,008.18 = 19,302.79/x
  3. Step 3: Cross multiply
    28,686.10x = 43,008.18 × 19,302.79
  4. Step 4: Simplify right side
    28,686.10x = 830,177,866.82
  5. Step 5: Solve for x
    x = 830,177,866.82/28,686.10
  6. Step 6: Final answer
    x = 28,940.07

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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.