Home / 19,261.40-28,865.10-15,319.40

Finding the Fourth Proportional to 19,261.40, 28,865.10 and 15,319.40

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Solution

The fourth proportional to 19,261.40, 28,865.10 and 15,319.40 is: 22,957.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.40 : 28,865.10 = 15,319.40 : x
  2. Step 2: Convert to fraction form
    19,261.40/28,865.10 = 15,319.40/x
  3. Step 3: Cross multiply
    19,261.40x = 28,865.10 × 15,319.40
  4. Step 4: Simplify right side
    19,261.40x = 442,196,012.94
  5. Step 5: Solve for x
    x = 442,196,012.94/19,261.40
  6. Step 6: Final answer
    x = 22,957.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.