Home / 57,710.92-86,562.06-20,271.32

Finding the Fourth Proportional to 57,710.92, 86,562.06 and 20,271.32

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Solution

The fourth proportional to 57,710.92, 86,562.06 and 20,271.32 is: 30,405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,710.92 : 86,562.06 = 20,271.32 : x
  2. Step 2: Convert to fraction form
    57,710.92/86,562.06 = 20,271.32/x
  3. Step 3: Cross multiply
    57,710.92x = 86,562.06 × 20,271.32
  4. Step 4: Simplify right side
    57,710.92x = 1,754,727,218.12
  5. Step 5: Solve for x
    x = 1,754,727,218.12/57,710.92
  6. Step 6: Final answer
    x = 30,405.46

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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.