Home / 30,818.48-42,527.16-17,390.99

Finding the Fourth Proportional to 30,818.48, 42,527.16 and 17,390.99

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Solution

The fourth proportional to 30,818.48, 42,527.16 and 17,390.99 is: 23,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.48 : 42,527.16 = 17,390.99 : x
  2. Step 2: Convert to fraction form
    30,818.48/42,527.16 = 17,390.99/x
  3. Step 3: Cross multiply
    30,818.48x = 42,527.16 × 17,390.99
  4. Step 4: Simplify right side
    30,818.48x = 739,589,266.87
  5. Step 5: Solve for x
    x = 739,589,266.87/30,818.48
  6. Step 6: Final answer
    x = 23,998.24

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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.