Home / 28,699.32-39,605.28-15,952.68

Finding the Fourth Proportional to 28,699.32, 39,605.28 and 15,952.68

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Solution

The fourth proportional to 28,699.32, 39,605.28 and 15,952.68 is: 22,014.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.32 : 39,605.28 = 15,952.68 : x
  2. Step 2: Convert to fraction form
    28,699.32/39,605.28 = 15,952.68/x
  3. Step 3: Cross multiply
    28,699.32x = 39,605.28 × 15,952.68
  4. Step 4: Simplify right side
    28,699.32x = 631,810,358.15
  5. Step 5: Solve for x
    x = 631,810,358.15/28,699.32
  6. Step 6: Final answer
    x = 22,014.82

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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.