Home / 23,500.39-32,430.59-12,890.11

Finding the Fourth Proportional to 23,500.39, 32,430.59 and 12,890.11

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Solution

The fourth proportional to 23,500.39, 32,430.59 and 12,890.11 is: 17,788.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,500.39 : 32,430.59 = 12,890.11 : x
  2. Step 2: Convert to fraction form
    23,500.39/32,430.59 = 12,890.11/x
  3. Step 3: Cross multiply
    23,500.39x = 32,430.59 × 12,890.11
  4. Step 4: Simplify right side
    23,500.39x = 418,033,872.46
  5. Step 5: Solve for x
    x = 418,033,872.46/23,500.39
  6. Step 6: Final answer
    x = 17,788.38

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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.