Home / 21,351.01-29,465.57-12,401.32

Finding the Fourth Proportional to 21,351.01, 29,465.57 and 12,401.32

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Solution

The fourth proportional to 21,351.01, 29,465.57 and 12,401.32 is: 17,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.01 : 29,465.57 = 12,401.32 : x
  2. Step 2: Convert to fraction form
    21,351.01/29,465.57 = 12,401.32/x
  3. Step 3: Cross multiply
    21,351.01x = 29,465.57 × 12,401.32
  4. Step 4: Simplify right side
    21,351.01x = 365,411,962.55
  5. Step 5: Solve for x
    x = 365,411,962.55/21,351.01
  6. Step 6: Final answer
    x = 17,114.50

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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.