Home / 42,474.36-63,710.46-20,303.40

Finding the Fourth Proportional to 42,474.36, 63,710.46 and 20,303.40

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Solution

The fourth proportional to 42,474.36, 63,710.46 and 20,303.40 is: 30,454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,474.36 : 63,710.46 = 20,303.40 : x
  2. Step 2: Convert to fraction form
    42,474.36/63,710.46 = 20,303.40/x
  3. Step 3: Cross multiply
    42,474.36x = 63,710.46 × 20,303.40
  4. Step 4: Simplify right side
    42,474.36x = 1,293,538,953.56
  5. Step 5: Solve for x
    x = 1,293,538,953.56/42,474.36
  6. Step 6: Final answer
    x = 30,454.58

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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.