Home / 39,485.04-59,225.12-13,187.58

Finding the Fourth Proportional to 39,485.04, 59,225.12 and 13,187.58

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Solution

The fourth proportional to 39,485.04, 59,225.12 and 13,187.58 is: 19,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,485.04 : 59,225.12 = 13,187.58 : x
  2. Step 2: Convert to fraction form
    39,485.04/59,225.12 = 13,187.58/x
  3. Step 3: Cross multiply
    39,485.04x = 59,225.12 × 13,187.58
  4. Step 4: Simplify right side
    39,485.04x = 781,036,008.01
  5. Step 5: Solve for x
    x = 781,036,008.01/39,485.04
  6. Step 6: Final answer
    x = 19,780.56

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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.