Home / 27,138.29-40,637.33-18,730.74

Finding the Fourth Proportional to 27,138.29, 40,637.33 and 18,730.74

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Solution

The fourth proportional to 27,138.29, 40,637.33 and 18,730.74 is: 28,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,138.29 : 40,637.33 = 18,730.74 : x
  2. Step 2: Convert to fraction form
    27,138.29/40,637.33 = 18,730.74/x
  3. Step 3: Cross multiply
    27,138.29x = 40,637.33 × 18,730.74
  4. Step 4: Simplify right side
    27,138.29x = 761,167,262.52
  5. Step 5: Solve for x
    x = 761,167,262.52/27,138.29
  6. Step 6: Final answer
    x = 28,047.72

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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.