Home / 30,397.32-45,646.41-18,784.35

Finding the Fourth Proportional to 30,397.32, 45,646.41 and 18,784.35

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Solution

The fourth proportional to 30,397.32, 45,646.41 and 18,784.35 is: 28,207.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,397.32 : 45,646.41 = 18,784.35 : x
  2. Step 2: Convert to fraction form
    30,397.32/45,646.41 = 18,784.35/x
  3. Step 3: Cross multiply
    30,397.32x = 45,646.41 × 18,784.35
  4. Step 4: Simplify right side
    30,397.32x = 857,438,141.68
  5. Step 5: Solve for x
    x = 857,438,141.68/30,397.32
  6. Step 6: Final answer
    x = 28,207.69

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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.