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Finding the Fourth Proportional to 58,384.94, 87,589.71 and 18,938.98

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Solution

The fourth proportional to 58,384.94, 87,589.71 and 18,938.98 is: 28,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,384.94 : 87,589.71 = 18,938.98 : x
  2. Step 2: Convert to fraction form
    58,384.94/87,589.71 = 18,938.98/x
  3. Step 3: Cross multiply
    58,384.94x = 87,589.71 × 18,938.98
  4. Step 4: Simplify right side
    58,384.94x = 1,658,859,765.90
  5. Step 5: Solve for x
    x = 1,658,859,765.90/58,384.94
  6. Step 6: Final answer
    x = 28,412.46

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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.