Home / 28,045.10-38,702.09-15,298.08

Finding the Fourth Proportional to 28,045.10, 38,702.09 and 15,298.08

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Solution

The fourth proportional to 28,045.10, 38,702.09 and 15,298.08 is: 21,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.10 : 38,702.09 = 15,298.08 : x
  2. Step 2: Convert to fraction form
    28,045.10/38,702.09 = 15,298.08/x
  3. Step 3: Cross multiply
    28,045.10x = 38,702.09 × 15,298.08
  4. Step 4: Simplify right side
    28,045.10x = 592,067,668.99
  5. Step 5: Solve for x
    x = 592,067,668.99/28,045.10
  6. Step 6: Final answer
    x = 21,111.27

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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.