Home / 37,689.20-56,533.80-11,412.40

Finding the Fourth Proportional to 37,689.20, 56,533.80 and 11,412.40

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Solution

The fourth proportional to 37,689.20, 56,533.80 and 11,412.40 is: 17,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,689.20 : 56,533.80 = 11,412.40 : x
  2. Step 2: Convert to fraction form
    37,689.20/56,533.80 = 11,412.40/x
  3. Step 3: Cross multiply
    37,689.20x = 56,533.80 × 11,412.40
  4. Step 4: Simplify right side
    37,689.20x = 645,186,339.12
  5. Step 5: Solve for x
    x = 645,186,339.12/37,689.20
  6. Step 6: Final answer
    x = 17,118.60

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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.