Home / 26,931.80-40,421.70-15,824.60

Finding the Fourth Proportional to 26,931.80, 40,421.70 and 15,824.60

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Solution

The fourth proportional to 26,931.80, 40,421.70 and 15,824.60 is: 23,751.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931.80 : 40,421.70 = 15,824.60 : x
  2. Step 2: Convert to fraction form
    26,931.80/40,421.70 = 15,824.60/x
  3. Step 3: Cross multiply
    26,931.80x = 40,421.70 × 15,824.60
  4. Step 4: Simplify right side
    26,931.80x = 639,657,233.82
  5. Step 5: Solve for x
    x = 639,657,233.82/26,931.80
  6. Step 6: Final answer
    x = 23,751.00

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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.