Home / 28,599.21-39,466.85-15,853.05

Finding the Fourth Proportional to 28,599.21, 39,466.85 and 15,853.05

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Solution

The fourth proportional to 28,599.21, 39,466.85 and 15,853.05 is: 21,877.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,599.21 : 39,466.85 = 15,853.05 : x
  2. Step 2: Convert to fraction form
    28,599.21/39,466.85 = 15,853.05/x
  3. Step 3: Cross multiply
    28,599.21x = 39,466.85 × 15,853.05
  4. Step 4: Simplify right side
    28,599.21x = 625,669,867.13
  5. Step 5: Solve for x
    x = 625,669,867.13/28,599.21
  6. Step 6: Final answer
    x = 21,877.17

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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.