Home / 28,506.02-39,339.14-15,930.77

Finding the Fourth Proportional to 28,506.02, 39,339.14 and 15,930.77

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Solution

The fourth proportional to 28,506.02, 39,339.14 and 15,930.77 is: 21,984.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.02 : 39,339.14 = 15,930.77 : x
  2. Step 2: Convert to fraction form
    28,506.02/39,339.14 = 15,930.77/x
  3. Step 3: Cross multiply
    28,506.02x = 39,339.14 × 15,930.77
  4. Step 4: Simplify right side
    28,506.02x = 626,702,514.99
  5. Step 5: Solve for x
    x = 626,702,514.99/28,506.02
  6. Step 6: Final answer
    x = 21,984.92

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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.