Home / 30,818.56-42,536.48-20,044.70

Finding the Fourth Proportional to 30,818.56, 42,536.48 and 20,044.70

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Solution

The fourth proportional to 30,818.56, 42,536.48 and 20,044.70 is: 27,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.56 : 42,536.48 = 20,044.70 : x
  2. Step 2: Convert to fraction form
    30,818.56/42,536.48 = 20,044.70/x
  3. Step 3: Cross multiply
    30,818.56x = 42,536.48 × 20,044.70
  4. Step 4: Simplify right side
    30,818.56x = 852,630,980.66
  5. Step 5: Solve for x
    x = 852,630,980.66/30,818.56
  6. Step 6: Final answer
    x = 27,666.15

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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.