Home / 31,448.40-47,109.28-14,557.60

Finding the Fourth Proportional to 31,448.40, 47,109.28 and 14,557.60

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Solution

The fourth proportional to 31,448.40, 47,109.28 and 14,557.60 is: 21,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,448.40 : 47,109.28 = 14,557.60 : x
  2. Step 2: Convert to fraction form
    31,448.40/47,109.28 = 14,557.60/x
  3. Step 3: Cross multiply
    31,448.40x = 47,109.28 × 14,557.60
  4. Step 4: Simplify right side
    31,448.40x = 685,798,054.53
  5. Step 5: Solve for x
    x = 685,798,054.53/31,448.40
  6. Step 6: Final answer
    x = 21,807.09

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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.