Home / 31,499.79-47,226.21-13,727.08

Finding the Fourth Proportional to 31,499.79, 47,226.21 and 13,727.08

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Solution

The fourth proportional to 31,499.79, 47,226.21 and 13,727.08 is: 20,580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,499.79 : 47,226.21 = 13,727.08 : x
  2. Step 2: Convert to fraction form
    31,499.79/47,226.21 = 13,727.08/x
  3. Step 3: Cross multiply
    31,499.79x = 47,226.21 × 13,727.08
  4. Step 4: Simplify right side
    31,499.79x = 648,277,962.77
  5. Step 5: Solve for x
    x = 648,277,962.77/31,499.79
  6. Step 6: Final answer
    x = 20,580.39

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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.