Home / 15,988.19-23,981.40-4,894.87

Finding the Fourth Proportional to 15,988.19, 23,981.40 and 4,894.87

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Solution

The fourth proportional to 15,988.19, 23,981.40 and 4,894.87 is: 7,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.19 : 23,981.40 = 4,894.87 : x
  2. Step 2: Convert to fraction form
    15,988.19/23,981.40 = 4,894.87/x
  3. Step 3: Cross multiply
    15,988.19x = 23,981.40 × 4,894.87
  4. Step 4: Simplify right side
    15,988.19x = 117,385,835.42
  5. Step 5: Solve for x
    x = 117,385,835.42/15,988.19
  6. Step 6: Final answer
    x = 7,342.03

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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.