Home / 42,405.86-63,608.79-14,325.99

Finding the Fourth Proportional to 42,405.86, 63,608.79 and 14,325.99

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Solution

The fourth proportional to 42,405.86, 63,608.79 and 14,325.99 is: 21,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,405.86 : 63,608.79 = 14,325.99 : x
  2. Step 2: Convert to fraction form
    42,405.86/63,608.79 = 14,325.99/x
  3. Step 3: Cross multiply
    42,405.86x = 63,608.79 × 14,325.99
  4. Step 4: Simplify right side
    42,405.86x = 911,258,889.45
  5. Step 5: Solve for x
    x = 911,258,889.45/42,405.86
  6. Step 6: Final answer
    x = 21,488.99

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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.