Home / 21,037.50-29,031.75-11,606.67

Finding the Fourth Proportional to 21,037.50, 29,031.75 and 11,606.67

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Solution

The fourth proportional to 21,037.50, 29,031.75 and 11,606.67 is: 16,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037.50 : 29,031.75 = 11,606.67 : x
  2. Step 2: Convert to fraction form
    21,037.50/29,031.75 = 11,606.67/x
  3. Step 3: Cross multiply
    21,037.50x = 29,031.75 × 11,606.67
  4. Step 4: Simplify right side
    21,037.50x = 336,961,941.77
  5. Step 5: Solve for x
    x = 336,961,941.77/21,037.50
  6. Step 6: Final answer
    x = 16,017.20

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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.