Home / 42,426.21-63,639.25-10,836.30

Finding the Fourth Proportional to 42,426.21, 63,639.25 and 10,836.30

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Solution

The fourth proportional to 42,426.21, 63,639.25 and 10,836.30 is: 16,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.21 : 63,639.25 = 10,836.30 : x
  2. Step 2: Convert to fraction form
    42,426.21/63,639.25 = 10,836.30/x
  3. Step 3: Cross multiply
    42,426.21x = 63,639.25 × 10,836.30
  4. Step 4: Simplify right side
    42,426.21x = 689,614,030.70
  5. Step 5: Solve for x
    x = 689,614,030.70/42,426.21
  6. Step 6: Final answer
    x = 16,254.44

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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.