Home / 53,000.20-79,450.89-17,915.32

Finding the Fourth Proportional to 53,000.20, 79,450.89 and 17,915.32

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Solution

The fourth proportional to 53,000.20, 79,450.89 and 17,915.32 is: 26,856.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,000.20 : 79,450.89 = 17,915.32 : x
  2. Step 2: Convert to fraction form
    53,000.20/79,450.89 = 17,915.32/x
  3. Step 3: Cross multiply
    53,000.20x = 79,450.89 × 17,915.32
  4. Step 4: Simplify right side
    53,000.20x = 1,423,388,118.63
  5. Step 5: Solve for x
    x = 1,423,388,118.63/53,000.20
  6. Step 6: Final answer
    x = 26,856.28

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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.