Home / 35,730.40-53,595.60-12,359.20

Finding the Fourth Proportional to 35,730.40, 53,595.60 and 12,359.20

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Solution

The fourth proportional to 35,730.40, 53,595.60 and 12,359.20 is: 18,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,730.40 : 53,595.60 = 12,359.20 : x
  2. Step 2: Convert to fraction form
    35,730.40/53,595.60 = 12,359.20/x
  3. Step 3: Cross multiply
    35,730.40x = 53,595.60 × 12,359.20
  4. Step 4: Simplify right side
    35,730.40x = 662,398,739.52
  5. Step 5: Solve for x
    x = 662,398,739.52/35,730.40
  6. Step 6: Final answer
    x = 18,538.80

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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.