Home / 37,990.40-56,985.60-10,288.40

Finding the Fourth Proportional to 37,990.40, 56,985.60 and 10,288.40

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Solution

The fourth proportional to 37,990.40, 56,985.60 and 10,288.40 is: 15,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,990.40 : 56,985.60 = 10,288.40 : x
  2. Step 2: Convert to fraction form
    37,990.40/56,985.60 = 10,288.40/x
  3. Step 3: Cross multiply
    37,990.40x = 56,985.60 × 10,288.40
  4. Step 4: Simplify right side
    37,990.40x = 586,290,647.04
  5. Step 5: Solve for x
    x = 586,290,647.04/37,990.40
  6. Step 6: Final answer
    x = 15,432.60

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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.