Home / 22,428.70-33,643.05-15,430.30

Finding the Fourth Proportional to 22,428.70, 33,643.05 and 15,430.30

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Solution

The fourth proportional to 22,428.70, 33,643.05 and 15,430.30 is: 23,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428.70 : 33,643.05 = 15,430.30 : x
  2. Step 2: Convert to fraction form
    22,428.70/33,643.05 = 15,430.30/x
  3. Step 3: Cross multiply
    22,428.70x = 33,643.05 × 15,430.30
  4. Step 4: Simplify right side
    22,428.70x = 519,122,354.42
  5. Step 5: Solve for x
    x = 519,122,354.42/22,428.70
  6. Step 6: Final answer
    x = 23,145.45

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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.