Home / 31,603.20-43,612.80-17,457.60

Finding the Fourth Proportional to 31,603.20, 43,612.80 and 17,457.60

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Solution

The fourth proportional to 31,603.20, 43,612.80 and 17,457.60 is: 24,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,603.20 : 43,612.80 = 17,457.60 : x
  2. Step 2: Convert to fraction form
    31,603.20/43,612.80 = 17,457.60/x
  3. Step 3: Cross multiply
    31,603.20x = 43,612.80 × 17,457.60
  4. Step 4: Simplify right side
    31,603.20x = 761,374,817.28
  5. Step 5: Solve for x
    x = 761,374,817.28/31,603.20
  6. Step 6: Final answer
    x = 24,091.70

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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.