Home / 26,020.96-35,909.60-15,406.72

Finding the Fourth Proportional to 26,020.96, 35,909.60 and 15,406.72

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Solution

The fourth proportional to 26,020.96, 35,909.60 and 15,406.72 is: 21,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,020.96 : 35,909.60 = 15,406.72 : x
  2. Step 2: Convert to fraction form
    26,020.96/35,909.60 = 15,406.72/x
  3. Step 3: Cross multiply
    26,020.96x = 35,909.60 × 15,406.72
  4. Step 4: Simplify right side
    26,020.96x = 553,249,152.51
  5. Step 5: Solve for x
    x = 553,249,152.51/26,020.96
  6. Step 6: Final answer
    x = 21,261.67

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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.