Home / 47,039.50-64,912.16-27,920.11

Finding the Fourth Proportional to 47,039.50, 64,912.16 and 27,920.11

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Solution

The fourth proportional to 47,039.50, 64,912.16 and 27,920.11 is: 38,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,039.50 : 64,912.16 = 27,920.11 : x
  2. Step 2: Convert to fraction form
    47,039.50/64,912.16 = 27,920.11/x
  3. Step 3: Cross multiply
    47,039.50x = 64,912.16 × 27,920.11
  4. Step 4: Simplify right side
    47,039.50x = 1,812,354,322.98
  5. Step 5: Solve for x
    x = 1,812,354,322.98/47,039.50
  6. Step 6: Final answer
    x = 38,528.35

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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.