Home / 28,697.39-39,602.14-15,950.25

Finding the Fourth Proportional to 28,697.39, 39,602.14 and 15,950.25

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Solution

The fourth proportional to 28,697.39, 39,602.14 and 15,950.25 is: 22,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,697.39 : 39,602.14 = 15,950.25 : x
  2. Step 2: Convert to fraction form
    28,697.39/39,602.14 = 15,950.25/x
  3. Step 3: Cross multiply
    28,697.39x = 39,602.14 × 15,950.25
  4. Step 4: Simplify right side
    28,697.39x = 631,663,845.13
  5. Step 5: Solve for x
    x = 631,663,845.13/28,697.39
  6. Step 6: Final answer
    x = 22,011.19

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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.