Home / 42,836.04-64,235.43-20,353.23

Finding the Fourth Proportional to 42,836.04, 64,235.43 and 20,353.23

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Solution

The fourth proportional to 42,836.04, 64,235.43 and 20,353.23 is: 30,520.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836.04 : 64,235.43 = 20,353.23 : x
  2. Step 2: Convert to fraction form
    42,836.04/64,235.43 = 20,353.23/x
  3. Step 3: Cross multiply
    42,836.04x = 64,235.43 × 20,353.23
  4. Step 4: Simplify right side
    42,836.04x = 1,307,398,480.94
  5. Step 5: Solve for x
    x = 1,307,398,480.94/42,836.04
  6. Step 6: Final answer
    x = 30,520.99

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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.