Home / 21,834.52-30,130.77-12,402.04

Finding the Fourth Proportional to 21,834.52, 30,130.77 and 12,402.04

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Solution

The fourth proportional to 21,834.52, 30,130.77 and 12,402.04 is: 17,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,834.52 : 30,130.77 = 12,402.04 : x
  2. Step 2: Convert to fraction form
    21,834.52/30,130.77 = 12,402.04/x
  3. Step 3: Cross multiply
    21,834.52x = 30,130.77 × 12,402.04
  4. Step 4: Simplify right side
    21,834.52x = 373,683,014.77
  5. Step 5: Solve for x
    x = 373,683,014.77/21,834.52
  6. Step 6: Final answer
    x = 17,114.32

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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.