Home / 37,639.08-51,938.82-20,643

Finding the Fourth Proportional to 37,639.08, 51,938.82 and 20,643

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Solution

The fourth proportional to 37,639.08, 51,938.82 and 20,643 is: 28,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,639.08 : 51,938.82 = 20,643 : x
  2. Step 2: Convert to fraction form
    37,639.08/51,938.82 = 20,643/x
  3. Step 3: Cross multiply
    37,639.08x = 51,938.82 × 20,643
  4. Step 4: Simplify right side
    37,639.08x = 1,072,173,061.26
  5. Step 5: Solve for x
    x = 1,072,173,061.26/37,639.08
  6. Step 6: Final answer
    x = 28,485.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.