Home / 28,259.04-38,998.08-15,683.52

Finding the Fourth Proportional to 28,259.04, 38,998.08 and 15,683.52

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Solution

The fourth proportional to 28,259.04, 38,998.08 and 15,683.52 is: 21,643.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,259.04 : 38,998.08 = 15,683.52 : x
  2. Step 2: Convert to fraction form
    28,259.04/38,998.08 = 15,683.52/x
  3. Step 3: Cross multiply
    28,259.04x = 38,998.08 × 15,683.52
  4. Step 4: Simplify right side
    28,259.04x = 611,627,167.64
  5. Step 5: Solve for x
    x = 611,627,167.64/28,259.04
  6. Step 6: Final answer
    x = 21,643.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.