Home / 27,756.32-38,303.76-15,656.96

Finding the Fourth Proportional to 27,756.32, 38,303.76 and 15,656.96

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Solution

The fourth proportional to 27,756.32, 38,303.76 and 15,656.96 is: 21,606.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.32 : 38,303.76 = 15,656.96 : x
  2. Step 2: Convert to fraction form
    27,756.32/38,303.76 = 15,656.96/x
  3. Step 3: Cross multiply
    27,756.32x = 38,303.76 × 15,656.96
  4. Step 4: Simplify right side
    27,756.32x = 599,720,438.17
  5. Step 5: Solve for x
    x = 599,720,438.17/27,756.32
  6. Step 6: Final answer
    x = 21,606.63

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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.