Home / 28,368.40-39,148.68-17,764.24

Finding the Fourth Proportional to 28,368.40, 39,148.68 and 17,764.24

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Solution

The fourth proportional to 28,368.40, 39,148.68 and 17,764.24 is: 24,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.40 : 39,148.68 = 17,764.24 : x
  2. Step 2: Convert to fraction form
    28,368.40/39,148.68 = 17,764.24/x
  3. Step 3: Cross multiply
    28,368.40x = 39,148.68 × 17,764.24
  4. Step 4: Simplify right side
    28,368.40x = 695,446,547.20
  5. Step 5: Solve for x
    x = 695,446,547.20/28,368.40
  6. Step 6: Final answer
    x = 24,514.83

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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.