Home / 36,981.60-55,461.60-13,286.40

Finding the Fourth Proportional to 36,981.60, 55,461.60 and 13,286.40

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Solution

The fourth proportional to 36,981.60, 55,461.60 and 13,286.40 is: 19,925.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,981.60 : 55,461.60 = 13,286.40 : x
  2. Step 2: Convert to fraction form
    36,981.60/55,461.60 = 13,286.40/x
  3. Step 3: Cross multiply
    36,981.60x = 55,461.60 × 13,286.40
  4. Step 4: Simplify right side
    36,981.60x = 736,885,002.24
  5. Step 5: Solve for x
    x = 736,885,002.24/36,981.60
  6. Step 6: Final answer
    x = 19,925.72

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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.