Home / 30,953.72-42,701.08-18,369.56

Finding the Fourth Proportional to 30,953.72, 42,701.08 and 18,369.56

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Solution

The fourth proportional to 30,953.72, 42,701.08 and 18,369.56 is: 25,341.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,953.72 : 42,701.08 = 18,369.56 : x
  2. Step 2: Convert to fraction form
    30,953.72/42,701.08 = 18,369.56/x
  3. Step 3: Cross multiply
    30,953.72x = 42,701.08 × 18,369.56
  4. Step 4: Simplify right side
    30,953.72x = 784,400,051.12
  5. Step 5: Solve for x
    x = 784,400,051.12/30,953.72
  6. Step 6: Final answer
    x = 25,341.06

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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.