Home / 39,030.32-53,861.73-21,125.32

Finding the Fourth Proportional to 39,030.32, 53,861.73 and 21,125.32

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Solution

The fourth proportional to 39,030.32, 53,861.73 and 21,125.32 is: 29,152.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030.32 : 53,861.73 = 21,125.32 : x
  2. Step 2: Convert to fraction form
    39,030.32/53,861.73 = 21,125.32/x
  3. Step 3: Cross multiply
    39,030.32x = 53,861.73 × 21,125.32
  4. Step 4: Simplify right side
    39,030.32x = 1,137,846,282.00
  5. Step 5: Solve for x
    x = 1,137,846,282.00/39,030.32
  6. Step 6: Final answer
    x = 29,152.88

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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.