Home / 30,926.95-42,682.14-18,826.46

Finding the Fourth Proportional to 30,926.95, 42,682.14 and 18,826.46

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Solution

The fourth proportional to 30,926.95, 42,682.14 and 18,826.46 is: 25,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,926.95 : 42,682.14 = 18,826.46 : x
  2. Step 2: Convert to fraction form
    30,926.95/42,682.14 = 18,826.46/x
  3. Step 3: Cross multiply
    30,926.95x = 42,682.14 × 18,826.46
  4. Step 4: Simplify right side
    30,926.95x = 803,553,548.07
  5. Step 5: Solve for x
    x = 803,553,548.07/30,926.95
  6. Step 6: Final answer
    x = 25,982.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.