Home / 30,587.28-45,872.60-8,395.40

Finding the Fourth Proportional to 30,587.28, 45,872.60 and 8,395.40

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Solution

The fourth proportional to 30,587.28, 45,872.60 and 8,395.40 is: 12,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.28 : 45,872.60 = 8,395.40 : x
  2. Step 2: Convert to fraction form
    30,587.28/45,872.60 = 8,395.40/x
  3. Step 3: Cross multiply
    30,587.28x = 45,872.60 × 8,395.40
  4. Step 4: Simplify right side
    30,587.28x = 385,118,826.04
  5. Step 5: Solve for x
    x = 385,118,826.04/30,587.28
  6. Step 6: Final answer
    x = 12,590.82

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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.