Home / 15,981.49-23,971.24-4,887.30

Finding the Fourth Proportional to 15,981.49, 23,971.24 and 4,887.30

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Solution

The fourth proportional to 15,981.49, 23,971.24 and 4,887.30 is: 7,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.49 : 23,971.24 = 4,887.30 : x
  2. Step 2: Convert to fraction form
    15,981.49/23,971.24 = 4,887.30/x
  3. Step 3: Cross multiply
    15,981.49x = 23,971.24 × 4,887.30
  4. Step 4: Simplify right side
    15,981.49x = 117,154,641.25
  5. Step 5: Solve for x
    x = 117,154,641.25/15,981.49
  6. Step 6: Final answer
    x = 7,330.65

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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.