Home / 31,420.98-47,100.04-17,387.28

Finding the Fourth Proportional to 31,420.98, 47,100.04 and 17,387.28

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Solution

The fourth proportional to 31,420.98, 47,100.04 and 17,387.28 is: 26,063.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.98 : 47,100.04 = 17,387.28 : x
  2. Step 2: Convert to fraction form
    31,420.98/47,100.04 = 17,387.28/x
  3. Step 3: Cross multiply
    31,420.98x = 47,100.04 × 17,387.28
  4. Step 4: Simplify right side
    31,420.98x = 818,941,583.49
  5. Step 5: Solve for x
    x = 818,941,583.49/31,420.98
  6. Step 6: Final answer
    x = 26,063.53

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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.