Home / 28,685.60-43,007.43-19,302.29

Finding the Fourth Proportional to 28,685.60, 43,007.43 and 19,302.29

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Solution

The fourth proportional to 28,685.60, 43,007.43 and 19,302.29 is: 28,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.60 : 43,007.43 = 19,302.29 : x
  2. Step 2: Convert to fraction form
    28,685.60/43,007.43 = 19,302.29/x
  3. Step 3: Cross multiply
    28,685.60x = 43,007.43 × 19,302.29
  4. Step 4: Simplify right side
    28,685.60x = 830,141,886.01
  5. Step 5: Solve for x
    x = 830,141,886.01/28,685.60
  6. Step 6: Final answer
    x = 28,939.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.