Home / 58,378.98-87,586.84-20,913.52

Finding the Fourth Proportional to 58,378.98, 87,586.84 and 20,913.52

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Solution

The fourth proportional to 58,378.98, 87,586.84 and 20,913.52 is: 31,376.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,378.98 : 87,586.84 = 20,913.52 : x
  2. Step 2: Convert to fraction form
    58,378.98/87,586.84 = 20,913.52/x
  3. Step 3: Cross multiply
    58,378.98x = 87,586.84 × 20,913.52
  4. Step 4: Simplify right side
    58,378.98x = 1,831,749,130.08
  5. Step 5: Solve for x
    x = 1,831,749,130.08/58,378.98
  6. Step 6: Final answer
    x = 31,376.86

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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.