Home / 31,875.20-47,812.80-16,323.20

Finding the Fourth Proportional to 31,875.20, 47,812.80 and 16,323.20

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Solution

The fourth proportional to 31,875.20, 47,812.80 and 16,323.20 is: 24,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,875.20 : 47,812.80 = 16,323.20 : x
  2. Step 2: Convert to fraction form
    31,875.20/47,812.80 = 16,323.20/x
  3. Step 3: Cross multiply
    31,875.20x = 47,812.80 × 16,323.20
  4. Step 4: Simplify right side
    31,875.20x = 780,457,896.96
  5. Step 5: Solve for x
    x = 780,457,896.96/31,875.20
  6. Step 6: Final answer
    x = 24,484.80

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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.