Home / 23,030.90-34,490.99-13,140.20

Finding the Fourth Proportional to 23,030.90, 34,490.99 and 13,140.20

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Solution

The fourth proportional to 23,030.90, 34,490.99 and 13,140.20 is: 19,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.90 : 34,490.99 = 13,140.20 : x
  2. Step 2: Convert to fraction form
    23,030.90/34,490.99 = 13,140.20/x
  3. Step 3: Cross multiply
    23,030.90x = 34,490.99 × 13,140.20
  4. Step 4: Simplify right side
    23,030.90x = 453,218,334.34
  5. Step 5: Solve for x
    x = 453,218,334.34/23,030.90
  6. Step 6: Final answer
    x = 19,678.71

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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.