Home / 27,868.08-38,457.94-15,931.67

Finding the Fourth Proportional to 27,868.08, 38,457.94 and 15,931.67

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Solution

The fourth proportional to 27,868.08, 38,457.94 and 15,931.67 is: 21,985.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.08 : 38,457.94 = 15,931.67 : x
  2. Step 2: Convert to fraction form
    27,868.08/38,457.94 = 15,931.67/x
  3. Step 3: Cross multiply
    27,868.08x = 38,457.94 × 15,931.67
  4. Step 4: Simplify right side
    27,868.08x = 612,699,208.96
  5. Step 5: Solve for x
    x = 612,699,208.96/27,868.08
  6. Step 6: Final answer
    x = 21,985.70

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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.