Home / 30,387.60-45,567.72-12,848.40

Finding the Fourth Proportional to 30,387.60, 45,567.72 and 12,848.40

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Solution

The fourth proportional to 30,387.60, 45,567.72 and 12,848.40 is: 19,266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.60 : 45,567.72 = 12,848.40 : x
  2. Step 2: Convert to fraction form
    30,387.60/45,567.72 = 12,848.40/x
  3. Step 3: Cross multiply
    30,387.60x = 45,567.72 × 12,848.40
  4. Step 4: Simplify right side
    30,387.60x = 585,472,293.65
  5. Step 5: Solve for x
    x = 585,472,293.65/30,387.60
  6. Step 6: Final answer
    x = 19,266.82

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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.