Home / 28,100.04-38,777.78-15,524.52

Finding the Fourth Proportional to 28,100.04, 38,777.78 and 15,524.52

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Solution

The fourth proportional to 28,100.04, 38,777.78 and 15,524.52 is: 21,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100.04 : 38,777.78 = 15,524.52 : x
  2. Step 2: Convert to fraction form
    28,100.04/38,777.78 = 15,524.52/x
  3. Step 3: Cross multiply
    28,100.04x = 38,777.78 × 15,524.52
  4. Step 4: Simplify right side
    28,100.04x = 602,006,421.17
  5. Step 5: Solve for x
    x = 602,006,421.17/28,100.04
  6. Step 6: Final answer
    x = 21,423.69

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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.