Home / 31,881.02-47,821.14-14,338.46

Finding the Fourth Proportional to 31,881.02, 47,821.14 and 14,338.46

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Solution

The fourth proportional to 31,881.02, 47,821.14 and 14,338.46 is: 21,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,881.02 : 47,821.14 = 14,338.46 : x
  2. Step 2: Convert to fraction form
    31,881.02/47,821.14 = 14,338.46/x
  3. Step 3: Cross multiply
    31,881.02x = 47,821.14 × 14,338.46
  4. Step 4: Simplify right side
    31,881.02x = 685,681,503.04
  5. Step 5: Solve for x
    x = 685,681,503.04/31,881.02
  6. Step 6: Final answer
    x = 21,507.51

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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.