Home / 28,397.64-39,188.76-15,476.84

Finding the Fourth Proportional to 28,397.64, 39,188.76 and 15,476.84

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Solution

The fourth proportional to 28,397.64, 39,188.76 and 15,476.84 is: 21,358.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,397.64 : 39,188.76 = 15,476.84 : x
  2. Step 2: Convert to fraction form
    28,397.64/39,188.76 = 15,476.84/x
  3. Step 3: Cross multiply
    28,397.64x = 39,188.76 × 15,476.84
  4. Step 4: Simplify right side
    28,397.64x = 606,518,168.32
  5. Step 5: Solve for x
    x = 606,518,168.32/28,397.64
  6. Step 6: Final answer
    x = 21,358.05

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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.