Home / 31,644.68-47,457.29-14,999.78

Finding the Fourth Proportional to 31,644.68, 47,457.29 and 14,999.78

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Solution

The fourth proportional to 31,644.68, 47,457.29 and 14,999.78 is: 22,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,644.68 : 47,457.29 = 14,999.78 : x
  2. Step 2: Convert to fraction form
    31,644.68/47,457.29 = 14,999.78/x
  3. Step 3: Cross multiply
    31,644.68x = 47,457.29 × 14,999.78
  4. Step 4: Simplify right side
    31,644.68x = 711,849,065.54
  5. Step 5: Solve for x
    x = 711,849,065.54/31,644.68
  6. Step 6: Final answer
    x = 22,495.07

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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.