Home / 30,209.81-41,709.70-18,895.32

Finding the Fourth Proportional to 30,209.81, 41,709.70 and 18,895.32

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Solution

The fourth proportional to 30,209.81, 41,709.70 and 18,895.32 is: 26,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.81 : 41,709.70 = 18,895.32 : x
  2. Step 2: Convert to fraction form
    30,209.81/41,709.70 = 18,895.32/x
  3. Step 3: Cross multiply
    30,209.81x = 41,709.70 × 18,895.32
  4. Step 4: Simplify right side
    30,209.81x = 788,118,034.13
  5. Step 5: Solve for x
    x = 788,118,034.13/30,209.81
  6. Step 6: Final answer
    x = 26,088.15

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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.