Home / 34,783.66-47,985.51-20,631.34

Finding the Fourth Proportional to 34,783.66, 47,985.51 and 20,631.34

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Solution

The fourth proportional to 34,783.66, 47,985.51 and 20,631.34 is: 28,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,783.66 : 47,985.51 = 20,631.34 : x
  2. Step 2: Convert to fraction form
    34,783.66/47,985.51 = 20,631.34/x
  3. Step 3: Cross multiply
    34,783.66x = 47,985.51 × 20,631.34
  4. Step 4: Simplify right side
    34,783.66x = 990,005,371.88
  5. Step 5: Solve for x
    x = 990,005,371.88/34,783.66
  6. Step 6: Final answer
    x = 28,461.79

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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.