Home / 20,513.48-30,746.34-9,421.34

Finding the Fourth Proportional to 20,513.48, 30,746.34 and 9,421.34

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Solution

The fourth proportional to 20,513.48, 30,746.34 and 9,421.34 is: 14,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.48 : 30,746.34 = 9,421.34 : x
  2. Step 2: Convert to fraction form
    20,513.48/30,746.34 = 9,421.34/x
  3. Step 3: Cross multiply
    20,513.48x = 30,746.34 × 9,421.34
  4. Step 4: Simplify right side
    20,513.48x = 289,671,722.90
  5. Step 5: Solve for x
    x = 289,671,722.90/20,513.48
  6. Step 6: Final answer
    x = 14,121.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.