Home / 19,290.56-28,888.64-17,420.67

Finding the Fourth Proportional to 19,290.56, 28,888.64 and 17,420.67

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Solution

The fourth proportional to 19,290.56, 28,888.64 and 17,420.67 is: 26,088.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.56 : 28,888.64 = 17,420.67 : x
  2. Step 2: Convert to fraction form
    19,290.56/28,888.64 = 17,420.67/x
  3. Step 3: Cross multiply
    19,290.56x = 28,888.64 × 17,420.67
  4. Step 4: Simplify right side
    19,290.56x = 503,259,464.19
  5. Step 5: Solve for x
    x = 503,259,464.19/19,290.56
  6. Step 6: Final answer
    x = 26,088.38

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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.