Home / 31,430.72-43,373.81-17,283.60

Finding the Fourth Proportional to 31,430.72, 43,373.81 and 17,283.60

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Solution

The fourth proportional to 31,430.72, 43,373.81 and 17,283.60 is: 23,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.72 : 43,373.81 = 17,283.60 : x
  2. Step 2: Convert to fraction form
    31,430.72/43,373.81 = 17,283.60/x
  3. Step 3: Cross multiply
    31,430.72x = 43,373.81 × 17,283.60
  4. Step 4: Simplify right side
    31,430.72x = 749,655,625.73
  5. Step 5: Solve for x
    x = 749,655,625.73/31,430.72
  6. Step 6: Final answer
    x = 23,851.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.