Home / 28,073.61-38,741.76-15,498.36

Finding the Fourth Proportional to 28,073.61, 38,741.76 and 15,498.36

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Solution

The fourth proportional to 28,073.61, 38,741.76 and 15,498.36 is: 21,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.61 : 38,741.76 = 15,498.36 : x
  2. Step 2: Convert to fraction form
    28,073.61/38,741.76 = 15,498.36/x
  3. Step 3: Cross multiply
    28,073.61x = 38,741.76 × 15,498.36
  4. Step 4: Simplify right side
    28,073.61x = 600,433,743.51
  5. Step 5: Solve for x
    x = 600,433,743.51/28,073.61
  6. Step 6: Final answer
    x = 21,387.84

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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.