Home / 22,875.40-34,313.10-18,720.10

Finding the Fourth Proportional to 22,875.40, 34,313.10 and 18,720.10

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Solution

The fourth proportional to 22,875.40, 34,313.10 and 18,720.10 is: 28,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,875.40 : 34,313.10 = 18,720.10 : x
  2. Step 2: Convert to fraction form
    22,875.40/34,313.10 = 18,720.10/x
  3. Step 3: Cross multiply
    22,875.40x = 34,313.10 × 18,720.10
  4. Step 4: Simplify right side
    22,875.40x = 642,344,663.31
  5. Step 5: Solve for x
    x = 642,344,663.31/22,875.40
  6. Step 6: Final answer
    x = 28,080.15

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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.