Home / 28,225.04-38,952.31-15,649.79

Finding the Fourth Proportional to 28,225.04, 38,952.31 and 15,649.79

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Solution

The fourth proportional to 28,225.04, 38,952.31 and 15,649.79 is: 21,597.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.04 : 38,952.31 = 15,649.79 : x
  2. Step 2: Convert to fraction form
    28,225.04/38,952.31 = 15,649.79/x
  3. Step 3: Cross multiply
    28,225.04x = 38,952.31 × 15,649.79
  4. Step 4: Simplify right side
    28,225.04x = 609,595,471.51
  5. Step 5: Solve for x
    x = 609,595,471.51/28,225.04
  6. Step 6: Final answer
    x = 21,597.68

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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.