Home / 20,547.48-28,326.06-13,821.24

Finding the Fourth Proportional to 20,547.48, 28,326.06 and 13,821.24

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Solution

The fourth proportional to 20,547.48, 28,326.06 and 13,821.24 is: 19,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.48 : 28,326.06 = 13,821.24 : x
  2. Step 2: Convert to fraction form
    20,547.48/28,326.06 = 13,821.24/x
  3. Step 3: Cross multiply
    20,547.48x = 28,326.06 × 13,821.24
  4. Step 4: Simplify right side
    20,547.48x = 391,501,273.51
  5. Step 5: Solve for x
    x = 391,501,273.51/20,547.48
  6. Step 6: Final answer
    x = 19,053.49

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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.