Home / 30,010.95-45,022.77-10,284.21

Finding the Fourth Proportional to 30,010.95, 45,022.77 and 10,284.21

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Solution

The fourth proportional to 30,010.95, 45,022.77 and 10,284.21 is: 15,428.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,010.95 : 45,022.77 = 10,284.21 : x
  2. Step 2: Convert to fraction form
    30,010.95/45,022.77 = 10,284.21/x
  3. Step 3: Cross multiply
    30,010.95x = 45,022.77 × 10,284.21
  4. Step 4: Simplify right side
    30,010.95x = 463,023,621.46
  5. Step 5: Solve for x
    x = 463,023,621.46/30,010.95
  6. Step 6: Final answer
    x = 15,428.49

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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.