Home / 28,065.07-42,097.65-18,723.34

Finding the Fourth Proportional to 28,065.07, 42,097.65 and 18,723.34

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Solution

The fourth proportional to 28,065.07, 42,097.65 and 18,723.34 is: 28,085.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.07 : 42,097.65 = 18,723.34 : x
  2. Step 2: Convert to fraction form
    28,065.07/42,097.65 = 18,723.34/x
  3. Step 3: Cross multiply
    28,065.07x = 42,097.65 × 18,723.34
  4. Step 4: Simplify right side
    28,065.07x = 788,208,614.15
  5. Step 5: Solve for x
    x = 788,208,614.15/28,065.07
  6. Step 6: Final answer
    x = 28,085.04

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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.