Home / 28,498.96-39,327.76-15,753.08

Finding the Fourth Proportional to 28,498.96, 39,327.76 and 15,753.08

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Solution

The fourth proportional to 28,498.96, 39,327.76 and 15,753.08 is: 21,738.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.96 : 39,327.76 = 15,753.08 : x
  2. Step 2: Convert to fraction form
    28,498.96/39,327.76 = 15,753.08/x
  3. Step 3: Cross multiply
    28,498.96x = 39,327.76 × 15,753.08
  4. Step 4: Simplify right side
    28,498.96x = 619,533,349.50
  5. Step 5: Solve for x
    x = 619,533,349.50/28,498.96
  6. Step 6: Final answer
    x = 21,738.81

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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.