Home / 37,486.50-51,731.36-20,490.81

Finding the Fourth Proportional to 37,486.50, 51,731.36 and 20,490.81

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Solution

The fourth proportional to 37,486.50, 51,731.36 and 20,490.81 is: 28,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,486.50 : 51,731.36 = 20,490.81 : x
  2. Step 2: Convert to fraction form
    37,486.50/51,731.36 = 20,490.81/x
  3. Step 3: Cross multiply
    37,486.50x = 51,731.36 × 20,490.81
  4. Step 4: Simplify right side
    37,486.50x = 1,060,017,655.45
  5. Step 5: Solve for x
    x = 1,060,017,655.45/37,486.50
  6. Step 6: Final answer
    x = 28,277.32

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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.