Home / 28,784.32-39,721.44-16,207.36

Finding the Fourth Proportional to 28,784.32, 39,721.44 and 16,207.36

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Solution

The fourth proportional to 28,784.32, 39,721.44 and 16,207.36 is: 22,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,784.32 : 39,721.44 = 16,207.36 : x
  2. Step 2: Convert to fraction form
    28,784.32/39,721.44 = 16,207.36/x
  3. Step 3: Cross multiply
    28,784.32x = 39,721.44 × 16,207.36
  4. Step 4: Simplify right side
    28,784.32x = 643,779,677.80
  5. Step 5: Solve for x
    x = 643,779,677.80/28,784.32
  6. Step 6: Final answer
    x = 22,365.64

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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.