Home / 42,454.36-63,680.46-20,283.40

Finding the Fourth Proportional to 42,454.36, 63,680.46 and 20,283.40

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Solution

The fourth proportional to 42,454.36, 63,680.46 and 20,283.40 is: 30,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,454.36 : 63,680.46 = 20,283.40 : x
  2. Step 2: Convert to fraction form
    42,454.36/63,680.46 = 20,283.40/x
  3. Step 3: Cross multiply
    42,454.36x = 63,680.46 × 20,283.40
  4. Step 4: Simplify right side
    42,454.36x = 1,291,656,242.36
  5. Step 5: Solve for x
    x = 1,291,656,242.36/42,454.36
  6. Step 6: Final answer
    x = 30,424.58

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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.