Home / 40,030.18-55,213.04-30,582.34

Finding the Fourth Proportional to 40,030.18, 55,213.04 and 30,582.34

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Solution

The fourth proportional to 40,030.18, 55,213.04 and 30,582.34 is: 42,181.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,030.18 : 55,213.04 = 30,582.34 : x
  2. Step 2: Convert to fraction form
    40,030.18/55,213.04 = 30,582.34/x
  3. Step 3: Cross multiply
    40,030.18x = 55,213.04 × 30,582.34
  4. Step 4: Simplify right side
    40,030.18x = 1,688,543,961.71
  5. Step 5: Solve for x
    x = 1,688,543,961.71/40,030.18
  6. Step 6: Final answer
    x = 42,181.77

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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.