Home / 25,502.20-35,187.27-15,430.39

Finding the Fourth Proportional to 25,502.20, 35,187.27 and 15,430.39

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Solution

The fourth proportional to 25,502.20, 35,187.27 and 15,430.39 is: 21,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,502.20 : 35,187.27 = 15,430.39 : x
  2. Step 2: Convert to fraction form
    25,502.20/35,187.27 = 15,430.39/x
  3. Step 3: Cross multiply
    25,502.20x = 35,187.27 × 15,430.39
  4. Step 4: Simplify right side
    25,502.20x = 542,953,299.14
  5. Step 5: Solve for x
    x = 542,953,299.14/25,502.20
  6. Step 6: Final answer
    x = 21,290.45

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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.