Home / 30,030.79-45,046.85-10,309.52

Finding the Fourth Proportional to 30,030.79, 45,046.85 and 10,309.52

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Solution

The fourth proportional to 30,030.79, 45,046.85 and 10,309.52 is: 15,464.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,030.79 : 45,046.85 = 10,309.52 : x
  2. Step 2: Convert to fraction form
    30,030.79/45,046.85 = 10,309.52/x
  3. Step 3: Cross multiply
    30,030.79x = 45,046.85 × 10,309.52
  4. Step 4: Simplify right side
    30,030.79x = 464,411,401.01
  5. Step 5: Solve for x
    x = 464,411,401.01/30,030.79
  6. Step 6: Final answer
    x = 15,464.51

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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.