Home / 20,799.51-28,703.25-11,368.07

Finding the Fourth Proportional to 20,799.51, 28,703.25 and 11,368.07

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Solution

The fourth proportional to 20,799.51, 28,703.25 and 11,368.07 is: 15,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.51 : 28,703.25 = 11,368.07 : x
  2. Step 2: Convert to fraction form
    20,799.51/28,703.25 = 11,368.07/x
  3. Step 3: Cross multiply
    20,799.51x = 28,703.25 × 11,368.07
  4. Step 4: Simplify right side
    20,799.51x = 326,300,411.71
  5. Step 5: Solve for x
    x = 326,300,411.71/20,799.51
  6. Step 6: Final answer
    x = 15,687.89

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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.