Home / 18,937.48-28,221.57-18,367.40

Finding the Fourth Proportional to 18,937.48, 28,221.57 and 18,367.40

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Solution

The fourth proportional to 18,937.48, 28,221.57 and 18,367.40 is: 27,372.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.48 : 28,221.57 = 18,367.40 : x
  2. Step 2: Convert to fraction form
    18,937.48/28,221.57 = 18,367.40/x
  3. Step 3: Cross multiply
    18,937.48x = 28,221.57 × 18,367.40
  4. Step 4: Simplify right side
    18,937.48x = 518,356,864.82
  5. Step 5: Solve for x
    x = 518,356,864.82/18,937.48
  6. Step 6: Final answer
    x = 27,372.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.