Home / 39,400.80-59,109.30-13,124.40

Finding the Fourth Proportional to 39,400.80, 59,109.30 and 13,124.40

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Solution

The fourth proportional to 39,400.80, 59,109.30 and 13,124.40 is: 19,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400.80 : 59,109.30 = 13,124.40 : x
  2. Step 2: Convert to fraction form
    39,400.80/59,109.30 = 13,124.40/x
  3. Step 3: Cross multiply
    39,400.80x = 59,109.30 × 13,124.40
  4. Step 4: Simplify right side
    39,400.80x = 775,774,096.92
  5. Step 5: Solve for x
    x = 775,774,096.92/39,400.80
  6. Step 6: Final answer
    x = 19,689.30

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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.