Home / 28,267.18-38,994.51-19,315.06

Finding the Fourth Proportional to 28,267.18, 38,994.51 and 19,315.06

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Solution

The fourth proportional to 28,267.18, 38,994.51 and 19,315.06 is: 26,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.18 : 38,994.51 = 19,315.06 : x
  2. Step 2: Convert to fraction form
    28,267.18/38,994.51 = 19,315.06/x
  3. Step 3: Cross multiply
    28,267.18x = 38,994.51 × 19,315.06
  4. Step 4: Simplify right side
    28,267.18x = 753,181,275.27
  5. Step 5: Solve for x
    x = 753,181,275.27/28,267.18
  6. Step 6: Final answer
    x = 26,645.08

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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.