Home / 42,289.74-63,437.70-12,709.86

Finding the Fourth Proportional to 42,289.74, 63,437.70 and 12,709.86

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Solution

The fourth proportional to 42,289.74, 63,437.70 and 12,709.86 is: 19,065.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,289.74 : 63,437.70 = 12,709.86 : x
  2. Step 2: Convert to fraction form
    42,289.74/63,437.70 = 12,709.86/x
  3. Step 3: Cross multiply
    42,289.74x = 63,437.70 × 12,709.86
  4. Step 4: Simplify right side
    42,289.74x = 806,284,285.72
  5. Step 5: Solve for x
    x = 806,284,285.72/42,289.74
  6. Step 6: Final answer
    x = 19,065.72

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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.