Home / 43,123.85-64,686.34-13,541.67

Finding the Fourth Proportional to 43,123.85, 64,686.34 and 13,541.67

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Solution

The fourth proportional to 43,123.85, 64,686.34 and 13,541.67 is: 20,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,123.85 : 64,686.34 = 13,541.67 : x
  2. Step 2: Convert to fraction form
    43,123.85/64,686.34 = 13,541.67/x
  3. Step 3: Cross multiply
    43,123.85x = 64,686.34 × 13,541.67
  4. Step 4: Simplify right side
    43,123.85x = 875,961,069.79
  5. Step 5: Solve for x
    x = 875,961,069.79/43,123.85
  6. Step 6: Final answer
    x = 20,312.68

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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.