Home / 19,875.09-27,398.73-13,888.17

Finding the Fourth Proportional to 19,875.09, 27,398.73 and 13,888.17

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Solution

The fourth proportional to 19,875.09, 27,398.73 and 13,888.17 is: 19,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.09 : 27,398.73 = 13,888.17 : x
  2. Step 2: Convert to fraction form
    19,875.09/27,398.73 = 13,888.17/x
  3. Step 3: Cross multiply
    19,875.09x = 27,398.73 × 13,888.17
  4. Step 4: Simplify right side
    19,875.09x = 380,518,220.02
  5. Step 5: Solve for x
    x = 380,518,220.02/19,875.09
  6. Step 6: Final answer
    x = 19,145.48

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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.