Home / 30,534.68-42,139.38-18,596.10

Finding the Fourth Proportional to 30,534.68, 42,139.38 and 18,596.10

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Solution

The fourth proportional to 30,534.68, 42,139.38 and 18,596.10 is: 25,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.68 : 42,139.38 = 18,596.10 : x
  2. Step 2: Convert to fraction form
    30,534.68/42,139.38 = 18,596.10/x
  3. Step 3: Cross multiply
    30,534.68x = 42,139.38 × 18,596.10
  4. Step 4: Simplify right side
    30,534.68x = 783,628,124.42
  5. Step 5: Solve for x
    x = 783,628,124.42/30,534.68
  6. Step 6: Final answer
    x = 25,663.54

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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.