Home / 24,779.20-37,168.80-9,990.40

Finding the Fourth Proportional to 24,779.20, 37,168.80 and 9,990.40

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Solution

The fourth proportional to 24,779.20, 37,168.80 and 9,990.40 is: 14,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,779.20 : 37,168.80 = 9,990.40 : x
  2. Step 2: Convert to fraction form
    24,779.20/37,168.80 = 9,990.40/x
  3. Step 3: Cross multiply
    24,779.20x = 37,168.80 × 9,990.40
  4. Step 4: Simplify right side
    24,779.20x = 371,331,179.52
  5. Step 5: Solve for x
    x = 371,331,179.52/24,779.20
  6. Step 6: Final answer
    x = 14,985.60

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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.