Home / 30,118.86-45,178.65-14,325.57

Finding the Fourth Proportional to 30,118.86, 45,178.65 and 14,325.57

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Solution

The fourth proportional to 30,118.86, 45,178.65 and 14,325.57 is: 21,488.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,118.86 : 45,178.65 = 14,325.57 : x
  2. Step 2: Convert to fraction form
    30,118.86/45,178.65 = 14,325.57/x
  3. Step 3: Cross multiply
    30,118.86x = 45,178.65 × 14,325.57
  4. Step 4: Simplify right side
    30,118.86x = 647,209,913.08
  5. Step 5: Solve for x
    x = 647,209,913.08/30,118.86
  6. Step 6: Final answer
    x = 21,488.53

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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.