Home / 38,913.17-58,387.04-18,913.73

Finding the Fourth Proportional to 38,913.17, 58,387.04 and 18,913.73

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Solution

The fourth proportional to 38,913.17, 58,387.04 and 18,913.73 is: 28,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,913.17 : 58,387.04 = 18,913.73 : x
  2. Step 2: Convert to fraction form
    38,913.17/58,387.04 = 18,913.73/x
  3. Step 3: Cross multiply
    38,913.17x = 58,387.04 × 18,913.73
  4. Step 4: Simplify right side
    38,913.17x = 1,104,316,615.49
  5. Step 5: Solve for x
    x = 1,104,316,615.49/38,913.17
  6. Step 6: Final answer
    x = 28,378.99

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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.