Home / 42,754.12-64,048.14-20,583.07

Finding the Fourth Proportional to 42,754.12, 64,048.14 and 20,583.07

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Solution

The fourth proportional to 42,754.12, 64,048.14 and 20,583.07 is: 30,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,754.12 : 64,048.14 = 20,583.07 : x
  2. Step 2: Convert to fraction form
    42,754.12/64,048.14 = 20,583.07/x
  3. Step 3: Cross multiply
    42,754.12x = 64,048.14 × 20,583.07
  4. Step 4: Simplify right side
    42,754.12x = 1,318,307,188.87
  5. Step 5: Solve for x
    x = 1,318,307,188.87/42,754.12
  6. Step 6: Final answer
    x = 30,834.63

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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.