Home / 39,428.05-59,151.50-13,133.02

Finding the Fourth Proportional to 39,428.05, 59,151.50 and 13,133.02

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Solution

The fourth proportional to 39,428.05, 59,151.50 and 13,133.02 is: 19,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,428.05 : 59,151.50 = 13,133.02 : x
  2. Step 2: Convert to fraction form
    39,428.05/59,151.50 = 13,133.02/x
  3. Step 3: Cross multiply
    39,428.05x = 59,151.50 × 13,133.02
  4. Step 4: Simplify right side
    39,428.05x = 776,837,832.53
  5. Step 5: Solve for x
    x = 776,837,832.53/39,428.05
  6. Step 6: Final answer
    x = 19,702.67

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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.