Home / 28,296.80-39,050.60-15,551.14

Finding the Fourth Proportional to 28,296.80, 39,050.60 and 15,551.14

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Solution

The fourth proportional to 28,296.80, 39,050.60 and 15,551.14 is: 21,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.80 : 39,050.60 = 15,551.14 : x
  2. Step 2: Convert to fraction form
    28,296.80/39,050.60 = 15,551.14/x
  3. Step 3: Cross multiply
    28,296.80x = 39,050.60 × 15,551.14
  4. Step 4: Simplify right side
    28,296.80x = 607,281,347.68
  5. Step 5: Solve for x
    x = 607,281,347.68/28,296.80
  6. Step 6: Final answer
    x = 21,461.13

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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.