Home / 28,605.36-39,480.12-17,426.64

Finding the Fourth Proportional to 28,605.36, 39,480.12 and 17,426.64

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Solution

The fourth proportional to 28,605.36, 39,480.12 and 17,426.64 is: 24,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.36 : 39,480.12 = 17,426.64 : x
  2. Step 2: Convert to fraction form
    28,605.36/39,480.12 = 17,426.64/x
  3. Step 3: Cross multiply
    28,605.36x = 39,480.12 × 17,426.64
  4. Step 4: Simplify right side
    28,605.36x = 688,005,838.40
  5. Step 5: Solve for x
    x = 688,005,838.40/28,605.36
  6. Step 6: Final answer
    x = 24,051.64

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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.