Home / 52,928.10-79,423.20-21,353.40

Finding the Fourth Proportional to 52,928.10, 79,423.20 and 21,353.40

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Solution

The fourth proportional to 52,928.10, 79,423.20 and 21,353.40 is: 32,042.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,928.10 : 79,423.20 = 21,353.40 : x
  2. Step 2: Convert to fraction form
    52,928.10/79,423.20 = 21,353.40/x
  3. Step 3: Cross multiply
    52,928.10x = 79,423.20 × 21,353.40
  4. Step 4: Simplify right side
    52,928.10x = 1,695,955,358.88
  5. Step 5: Solve for x
    x = 1,695,955,358.88/52,928.10
  6. Step 6: Final answer
    x = 32,042.63

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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.