Home / 27,118.95-37,423.05-15,788.77

Finding the Fourth Proportional to 27,118.95, 37,423.05 and 15,788.77

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Solution

The fourth proportional to 27,118.95, 37,423.05 and 15,788.77 is: 21,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.95 : 37,423.05 = 15,788.77 : x
  2. Step 2: Convert to fraction form
    27,118.95/37,423.05 = 15,788.77/x
  3. Step 3: Cross multiply
    27,118.95x = 37,423.05 × 15,788.77
  4. Step 4: Simplify right side
    27,118.95x = 590,863,929.15
  5. Step 5: Solve for x
    x = 590,863,929.15/27,118.95
  6. Step 6: Final answer
    x = 21,787.86

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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.