Home / 39,810.40-59,712.16-13,514.56

Finding the Fourth Proportional to 39,810.40, 59,712.16 and 13,514.56

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Solution

The fourth proportional to 39,810.40, 59,712.16 and 13,514.56 is: 20,270.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810.40 : 59,712.16 = 13,514.56 : x
  2. Step 2: Convert to fraction form
    39,810.40/59,712.16 = 13,514.56/x
  3. Step 3: Cross multiply
    39,810.40x = 59,712.16 × 13,514.56
  4. Step 4: Simplify right side
    39,810.40x = 806,983,569.05
  5. Step 5: Solve for x
    x = 806,983,569.05/39,810.40
  6. Step 6: Final answer
    x = 20,270.67

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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.