Home / 31,428.04-43,370.87-17,281.80

Finding the Fourth Proportional to 31,428.04, 43,370.87 and 17,281.80

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Solution

The fourth proportional to 31,428.04, 43,370.87 and 17,281.80 is: 23,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.04 : 43,370.87 = 17,281.80 : x
  2. Step 2: Convert to fraction form
    31,428.04/43,370.87 = 17,281.80/x
  3. Step 3: Cross multiply
    31,428.04x = 43,370.87 × 17,281.80
  4. Step 4: Simplify right side
    31,428.04x = 749,526,701.17
  5. Step 5: Solve for x
    x = 749,526,701.17/31,428.04
  6. Step 6: Final answer
    x = 23,848.98

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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.