Home / 30,289.11-45,435.20-11,570.77

Finding the Fourth Proportional to 30,289.11, 45,435.20 and 11,570.77

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Solution

The fourth proportional to 30,289.11, 45,435.20 and 11,570.77 is: 17,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.11 : 45,435.20 = 11,570.77 : x
  2. Step 2: Convert to fraction form
    30,289.11/45,435.20 = 11,570.77/x
  3. Step 3: Cross multiply
    30,289.11x = 45,435.20 × 11,570.77
  4. Step 4: Simplify right side
    30,289.11x = 525,720,248.04
  5. Step 5: Solve for x
    x = 525,720,248.04/30,289.11
  6. Step 6: Final answer
    x = 17,356.74

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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.