Home / 39,780.07-59,670.24-13,503.40

Finding the Fourth Proportional to 39,780.07, 59,670.24 and 13,503.40

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Solution

The fourth proportional to 39,780.07, 59,670.24 and 13,503.40 is: 20,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.07 : 59,670.24 = 13,503.40 : x
  2. Step 2: Convert to fraction form
    39,780.07/59,670.24 = 13,503.40/x
  3. Step 3: Cross multiply
    39,780.07x = 59,670.24 × 13,503.40
  4. Step 4: Simplify right side
    39,780.07x = 805,751,118.82
  5. Step 5: Solve for x
    x = 805,751,118.82/39,780.07
  6. Step 6: Final answer
    x = 20,255.15

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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.