Home / 30,036.80-45,055.20-10,337.60

Finding the Fourth Proportional to 30,036.80, 45,055.20 and 10,337.60

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Solution

The fourth proportional to 30,036.80, 45,055.20 and 10,337.60 is: 15,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,036.80 : 45,055.20 = 10,337.60 : x
  2. Step 2: Convert to fraction form
    30,036.80/45,055.20 = 10,337.60/x
  3. Step 3: Cross multiply
    30,036.80x = 45,055.20 × 10,337.60
  4. Step 4: Simplify right side
    30,036.80x = 465,762,635.52
  5. Step 5: Solve for x
    x = 465,762,635.52/30,036.80
  6. Step 6: Final answer
    x = 15,506.40

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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.