Home / 37,630.77-51,931.05-20,636.56

Finding the Fourth Proportional to 37,630.77, 51,931.05 and 20,636.56

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Solution

The fourth proportional to 37,630.77, 51,931.05 and 20,636.56 is: 28,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,630.77 : 51,931.05 = 20,636.56 : x
  2. Step 2: Convert to fraction form
    37,630.77/51,931.05 = 20,636.56/x
  3. Step 3: Cross multiply
    37,630.77x = 51,931.05 × 20,636.56
  4. Step 4: Simplify right side
    37,630.77x = 1,071,678,229.19
  5. Step 5: Solve for x
    x = 1,071,678,229.19/37,630.77
  6. Step 6: Final answer
    x = 28,478.77

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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.