Home / 28,099.04-38,776.40-15,523.52

Finding the Fourth Proportional to 28,099.04, 38,776.40 and 15,523.52

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Solution

The fourth proportional to 28,099.04, 38,776.40 and 15,523.52 is: 21,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.04 : 38,776.40 = 15,523.52 : x
  2. Step 2: Convert to fraction form
    28,099.04/38,776.40 = 15,523.52/x
  3. Step 3: Cross multiply
    28,099.04x = 38,776.40 × 15,523.52
  4. Step 4: Simplify right side
    28,099.04x = 601,946,220.93
  5. Step 5: Solve for x
    x = 601,946,220.93/28,099.04
  6. Step 6: Final answer
    x = 21,422.31

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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.