Home / 30,026.78-45,041.08-10,305.06

Finding the Fourth Proportional to 30,026.78, 45,041.08 and 10,305.06

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Solution

The fourth proportional to 30,026.78, 45,041.08 and 10,305.06 is: 15,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,026.78 : 45,041.08 = 10,305.06 : x
  2. Step 2: Convert to fraction form
    30,026.78/45,041.08 = 10,305.06/x
  3. Step 3: Cross multiply
    30,026.78x = 45,041.08 × 10,305.06
  4. Step 4: Simplify right side
    30,026.78x = 464,151,031.86
  5. Step 5: Solve for x
    x = 464,151,031.86/30,026.78
  6. Step 6: Final answer
    x = 15,457.90

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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.