Home / 38,948.79-58,448.01-13,988.31

Finding the Fourth Proportional to 38,948.79, 58,448.01 and 13,988.31

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Solution

The fourth proportional to 38,948.79, 58,448.01 and 13,988.31 is: 20,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,948.79 : 58,448.01 = 13,988.31 : x
  2. Step 2: Convert to fraction form
    38,948.79/58,448.01 = 13,988.31/x
  3. Step 3: Cross multiply
    38,948.79x = 58,448.01 × 13,988.31
  4. Step 4: Simplify right side
    38,948.79x = 817,588,882.76
  5. Step 5: Solve for x
    x = 817,588,882.76/38,948.79
  6. Step 6: Final answer
    x = 20,991.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.