Home / 30,587.09-45,875.70-8,395.28

Finding the Fourth Proportional to 30,587.09, 45,875.70 and 8,395.28

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Solution

The fourth proportional to 30,587.09, 45,875.70 and 8,395.28 is: 12,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.09 : 45,875.70 = 8,395.28 : x
  2. Step 2: Convert to fraction form
    30,587.09/45,875.70 = 8,395.28/x
  3. Step 3: Cross multiply
    30,587.09x = 45,875.70 × 8,395.28
  4. Step 4: Simplify right side
    30,587.09x = 385,139,117.32
  5. Step 5: Solve for x
    x = 385,139,117.32/30,587.09
  6. Step 6: Final answer
    x = 12,591.56

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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.