Home / 39,707.76-59,570.40-13,411.92

Finding the Fourth Proportional to 39,707.76, 59,570.40 and 13,411.92

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Solution

The fourth proportional to 39,707.76, 59,570.40 and 13,411.92 is: 20,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,707.76 : 59,570.40 = 13,411.92 : x
  2. Step 2: Convert to fraction form
    39,707.76/59,570.40 = 13,411.92/x
  3. Step 3: Cross multiply
    39,707.76x = 59,570.40 × 13,411.92
  4. Step 4: Simplify right side
    39,707.76x = 798,953,439.17
  5. Step 5: Solve for x
    x = 798,953,439.17/39,707.76
  6. Step 6: Final answer
    x = 20,120.84

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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.