Home / 22,430.76-30,954.04-13,000.20

Finding the Fourth Proportional to 22,430.76, 30,954.04 and 13,000.20

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Solution

The fourth proportional to 22,430.76, 30,954.04 and 13,000.20 is: 17,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.76 : 30,954.04 = 13,000.20 : x
  2. Step 2: Convert to fraction form
    22,430.76/30,954.04 = 13,000.20/x
  3. Step 3: Cross multiply
    22,430.76x = 30,954.04 × 13,000.20
  4. Step 4: Simplify right side
    22,430.76x = 402,408,710.81
  5. Step 5: Solve for x
    x = 402,408,710.81/22,430.76
  6. Step 6: Final answer
    x = 17,940.04

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Half scale
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Double scale
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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.