Home / 30,465.96-42,044.64-18,370.32

Finding the Fourth Proportional to 30,465.96, 42,044.64 and 18,370.32

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Solution

The fourth proportional to 30,465.96, 42,044.64 and 18,370.32 is: 25,352.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,465.96 : 42,044.64 = 18,370.32 : x
  2. Step 2: Convert to fraction form
    30,465.96/42,044.64 = 18,370.32/x
  3. Step 3: Cross multiply
    30,465.96x = 42,044.64 × 18,370.32
  4. Step 4: Simplify right side
    30,465.96x = 772,373,491.08
  5. Step 5: Solve for x
    x = 772,373,491.08/30,465.96
  6. Step 6: Final answer
    x = 25,352.02

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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.