Home / 30,279.08-45,418.26-10,557.58

Finding the Fourth Proportional to 30,279.08, 45,418.26 and 10,557.58

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Solution

The fourth proportional to 30,279.08, 45,418.26 and 10,557.58 is: 15,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.08 : 45,418.26 = 10,557.58 : x
  2. Step 2: Convert to fraction form
    30,279.08/45,418.26 = 10,557.58/x
  3. Step 3: Cross multiply
    30,279.08x = 45,418.26 × 10,557.58
  4. Step 4: Simplify right side
    30,279.08x = 479,506,913.41
  5. Step 5: Solve for x
    x = 479,506,913.41/30,279.08
  6. Step 6: Final answer
    x = 15,836.24

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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.