Home / 40,347.10-60,521.08-12,271.72

Finding the Fourth Proportional to 40,347.10, 60,521.08 and 12,271.72

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Solution

The fourth proportional to 40,347.10, 60,521.08 and 12,271.72 is: 18,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,347.10 : 60,521.08 = 12,271.72 : x
  2. Step 2: Convert to fraction form
    40,347.10/60,521.08 = 12,271.72/x
  3. Step 3: Cross multiply
    40,347.10x = 60,521.08 × 12,271.72
  4. Step 4: Simplify right side
    40,347.10x = 742,697,747.86
  5. Step 5: Solve for x
    x = 742,697,747.86/40,347.10
  6. Step 6: Final answer
    x = 18,407.71

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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.