Home / 39,391.70-59,038.28-19,675.76

Finding the Fourth Proportional to 39,391.70, 59,038.28 and 19,675.76

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Solution

The fourth proportional to 39,391.70, 59,038.28 and 19,675.76 is: 29,489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,391.70 : 59,038.28 = 19,675.76 : x
  2. Step 2: Convert to fraction form
    39,391.70/59,038.28 = 19,675.76/x
  3. Step 3: Cross multiply
    39,391.70x = 59,038.28 × 19,675.76
  4. Step 4: Simplify right side
    39,391.70x = 1,161,622,929.71
  5. Step 5: Solve for x
    x = 1,161,622,929.71/39,391.70
  6. Step 6: Final answer
    x = 29,489.03

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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.