Home / 19,228.51-28,808.10-18,070.55

Finding the Fourth Proportional to 19,228.51, 28,808.10 and 18,070.55

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Solution

The fourth proportional to 19,228.51, 28,808.10 and 18,070.55 is: 27,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.51 : 28,808.10 = 18,070.55 : x
  2. Step 2: Convert to fraction form
    19,228.51/28,808.10 = 18,070.55/x
  3. Step 3: Cross multiply
    19,228.51x = 28,808.10 × 18,070.55
  4. Step 4: Simplify right side
    19,228.51x = 520,578,211.46
  5. Step 5: Solve for x
    x = 520,578,211.46/19,228.51
  6. Step 6: Final answer
    x = 27,073.25

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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.