Home / 21,253.02-29,267.91-21,188.22

Finding the Fourth Proportional to 21,253.02, 29,267.91 and 21,188.22

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Solution

The fourth proportional to 21,253.02, 29,267.91 and 21,188.22 is: 29,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.02 : 29,267.91 = 21,188.22 : x
  2. Step 2: Convert to fraction form
    21,253.02/29,267.91 = 21,188.22/x
  3. Step 3: Cross multiply
    21,253.02x = 29,267.91 × 21,188.22
  4. Step 4: Simplify right side
    21,253.02x = 620,134,916.02
  5. Step 5: Solve for x
    x = 620,134,916.02/21,253.02
  6. Step 6: Final answer
    x = 29,178.67

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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.