Home / 39,030.03-53,861.58-21,125.03

Finding the Fourth Proportional to 39,030.03, 53,861.58 and 21,125.03

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Solution

The fourth proportional to 39,030.03, 53,861.58 and 21,125.03 is: 29,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030.03 : 53,861.58 = 21,125.03 : x
  2. Step 2: Convert to fraction form
    39,030.03/53,861.58 = 21,125.03/x
  3. Step 3: Cross multiply
    39,030.03x = 53,861.58 × 21,125.03
  4. Step 4: Simplify right side
    39,030.03x = 1,137,827,224.04
  5. Step 5: Solve for x
    x = 1,137,827,224.04/39,030.03
  6. Step 6: Final answer
    x = 29,152.61

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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.