Home / 21,124.45-31,685.05-5,541.67

Finding the Fourth Proportional to 21,124.45, 31,685.05 and 5,541.67

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Solution

The fourth proportional to 21,124.45, 31,685.05 and 5,541.67 is: 8,312.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.45 : 31,685.05 = 5,541.67 : x
  2. Step 2: Convert to fraction form
    21,124.45/31,685.05 = 5,541.67/x
  3. Step 3: Cross multiply
    21,124.45x = 31,685.05 × 5,541.67
  4. Step 4: Simplify right side
    21,124.45x = 175,588,091.03
  5. Step 5: Solve for x
    x = 175,588,091.03/21,124.45
  6. Step 6: Final answer
    x = 8,312.08

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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.