Home / 27,430.22-41,118.55-13,389.68

Finding the Fourth Proportional to 27,430.22, 41,118.55 and 13,389.68

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Solution

The fourth proportional to 27,430.22, 41,118.55 and 13,389.68 is: 20,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,430.22 : 41,118.55 = 13,389.68 : x
  2. Step 2: Convert to fraction form
    27,430.22/41,118.55 = 13,389.68/x
  3. Step 3: Cross multiply
    27,430.22x = 41,118.55 × 13,389.68
  4. Step 4: Simplify right side
    27,430.22x = 550,564,295.89
  5. Step 5: Solve for x
    x = 550,564,295.89/27,430.22
  6. Step 6: Final answer
    x = 20,071.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.