Home / 30,031.60-45,032.28-9,252.40

Finding the Fourth Proportional to 30,031.60, 45,032.28 and 9,252.40

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Solution

The fourth proportional to 30,031.60, 45,032.28 and 9,252.40 is: 13,873.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.60 : 45,032.28 = 9,252.40 : x
  2. Step 2: Convert to fraction form
    30,031.60/45,032.28 = 9,252.40/x
  3. Step 3: Cross multiply
    30,031.60x = 45,032.28 × 9,252.40
  4. Step 4: Simplify right side
    30,031.60x = 416,656,667.47
  5. Step 5: Solve for x
    x = 416,656,667.47/30,031.60
  6. Step 6: Final answer
    x = 13,873.94

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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.