Home / 36,931.66-55,407-10,638.45

Finding the Fourth Proportional to 36,931.66, 55,407 and 10,638.45

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Solution

The fourth proportional to 36,931.66, 55,407 and 10,638.45 is: 15,960.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,931.66 : 55,407 = 10,638.45 : x
  2. Step 2: Convert to fraction form
    36,931.66/55,407 = 10,638.45/x
  3. Step 3: Cross multiply
    36,931.66x = 55,407 × 10,638.45
  4. Step 4: Simplify right side
    36,931.66x = 589,444,599.15
  5. Step 5: Solve for x
    x = 589,444,599.15/36,931.66
  6. Step 6: Final answer
    x = 15,960.41

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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.