Home / 36,718.08-55,079.21-10,420.75

Finding the Fourth Proportional to 36,718.08, 55,079.21 and 10,420.75

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Solution

The fourth proportional to 36,718.08, 55,079.21 and 10,420.75 is: 15,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,718.08 : 55,079.21 = 10,420.75 : x
  2. Step 2: Convert to fraction form
    36,718.08/55,079.21 = 10,420.75/x
  3. Step 3: Cross multiply
    36,718.08x = 55,079.21 × 10,420.75
  4. Step 4: Simplify right side
    36,718.08x = 573,966,677.61
  5. Step 5: Solve for x
    x = 573,966,677.61/36,718.08
  6. Step 6: Final answer
    x = 15,631.72

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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.