Home / 31,887.24-47,820.70-11,621.47

Finding the Fourth Proportional to 31,887.24, 47,820.70 and 11,621.47

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Solution

The fourth proportional to 31,887.24, 47,820.70 and 11,621.47 is: 17,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,887.24 : 47,820.70 = 11,621.47 : x
  2. Step 2: Convert to fraction form
    31,887.24/47,820.70 = 11,621.47/x
  3. Step 3: Cross multiply
    31,887.24x = 47,820.70 × 11,621.47
  4. Step 4: Simplify right side
    31,887.24x = 555,746,830.43
  5. Step 5: Solve for x
    x = 555,746,830.43/31,887.24
  6. Step 6: Final answer
    x = 17,428.50

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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.