Home / 34,109.46-47,073.42-20,681.28

Finding the Fourth Proportional to 34,109.46, 47,073.42 and 20,681.28

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Solution

The fourth proportional to 34,109.46, 47,073.42 and 20,681.28 is: 28,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,109.46 : 47,073.42 = 20,681.28 : x
  2. Step 2: Convert to fraction form
    34,109.46/47,073.42 = 20,681.28/x
  3. Step 3: Cross multiply
    34,109.46x = 47,073.42 × 20,681.28
  4. Step 4: Simplify right side
    34,109.46x = 973,538,579.58
  5. Step 5: Solve for x
    x = 973,538,579.58/34,109.46
  6. Step 6: Final answer
    x = 28,541.60

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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.