Home / 27,867.58-38,457.24-15,931.18

Finding the Fourth Proportional to 27,867.58, 38,457.24 and 15,931.18

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Solution

The fourth proportional to 27,867.58, 38,457.24 and 15,931.18 is: 21,985.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.58 : 38,457.24 = 15,931.18 : x
  2. Step 2: Convert to fraction form
    27,867.58/38,457.24 = 15,931.18/x
  3. Step 3: Cross multiply
    27,867.58x = 38,457.24 × 15,931.18
  4. Step 4: Simplify right side
    27,867.58x = 612,669,212.74
  5. Step 5: Solve for x
    x = 612,669,212.74/27,867.58
  6. Step 6: Final answer
    x = 21,985.02

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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.