Home / 29,193.61-43,630.45-21,312.72

Finding the Fourth Proportional to 29,193.61, 43,630.45 and 21,312.72

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Solution

The fourth proportional to 29,193.61, 43,630.45 and 21,312.72 is: 31,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,193.61 : 43,630.45 = 21,312.72 : x
  2. Step 2: Convert to fraction form
    29,193.61/43,630.45 = 21,312.72/x
  3. Step 3: Cross multiply
    29,193.61x = 43,630.45 × 21,312.72
  4. Step 4: Simplify right side
    29,193.61x = 929,883,564.32
  5. Step 5: Solve for x
    x = 929,883,564.32/29,193.61
  6. Step 6: Final answer
    x = 31,852.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.