Home / 42,289.44-63,429.10-11,127.12

Finding the Fourth Proportional to 42,289.44, 63,429.10 and 11,127.12

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Solution

The fourth proportional to 42,289.44, 63,429.10 and 11,127.12 is: 16,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,289.44 : 63,429.10 = 11,127.12 : x
  2. Step 2: Convert to fraction form
    42,289.44/63,429.10 = 11,127.12/x
  3. Step 3: Cross multiply
    42,289.44x = 63,429.10 × 11,127.12
  4. Step 4: Simplify right side
    42,289.44x = 705,783,207.19
  5. Step 5: Solve for x
    x = 705,783,207.19/42,289.44
  6. Step 6: Final answer
    x = 16,689.35

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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.