Home / 47,063.28-70,619.56-18,990.32

Finding the Fourth Proportional to 47,063.28, 70,619.56 and 18,990.32

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Solution

The fourth proportional to 47,063.28, 70,619.56 and 18,990.32 is: 28,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,063.28 : 70,619.56 = 18,990.32 : x
  2. Step 2: Convert to fraction form
    47,063.28/70,619.56 = 18,990.32/x
  3. Step 3: Cross multiply
    47,063.28x = 70,619.56 × 18,990.32
  4. Step 4: Simplify right side
    47,063.28x = 1,341,088,042.66
  5. Step 5: Solve for x
    x = 1,341,088,042.66/47,063.28
  6. Step 6: Final answer
    x = 28,495.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.