Home / 30,818.35-42,528.63-17,389.26

Finding the Fourth Proportional to 30,818.35, 42,528.63 and 17,389.26

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Solution

The fourth proportional to 30,818.35, 42,528.63 and 17,389.26 is: 23,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.35 : 42,528.63 = 17,389.26 : x
  2. Step 2: Convert to fraction form
    30,818.35/42,528.63 = 17,389.26/x
  3. Step 3: Cross multiply
    30,818.35x = 42,528.63 × 17,389.26
  4. Step 4: Simplify right side
    30,818.35x = 739,541,404.51
  5. Step 5: Solve for x
    x = 739,541,404.51/30,818.35
  6. Step 6: Final answer
    x = 23,996.79

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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.