Home / 27,810.68-38,378.54-15,063.58

Finding the Fourth Proportional to 27,810.68, 38,378.54 and 15,063.58

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Solution

The fourth proportional to 27,810.68, 38,378.54 and 15,063.58 is: 20,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,810.68 : 38,378.54 = 15,063.58 : x
  2. Step 2: Convert to fraction form
    27,810.68/38,378.54 = 15,063.58/x
  3. Step 3: Cross multiply
    27,810.68x = 38,378.54 × 15,063.58
  4. Step 4: Simplify right side
    27,810.68x = 578,118,015.68
  5. Step 5: Solve for x
    x = 578,118,015.68/27,810.68
  6. Step 6: Final answer
    x = 20,787.63

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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.