Home / 31,720.47-47,586.98-14,190.45

Finding the Fourth Proportional to 31,720.47, 47,586.98 and 14,190.45

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Solution

The fourth proportional to 31,720.47, 47,586.98 and 14,190.45 is: 21,288.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.47 : 47,586.98 = 14,190.45 : x
  2. Step 2: Convert to fraction form
    31,720.47/47,586.98 = 14,190.45/x
  3. Step 3: Cross multiply
    31,720.47x = 47,586.98 × 14,190.45
  4. Step 4: Simplify right side
    31,720.47x = 675,280,660.34
  5. Step 5: Solve for x
    x = 675,280,660.34/31,720.47
  6. Step 6: Final answer
    x = 21,288.48

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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.