Home / 28,443.52-42,688.08-12,862.48

Finding the Fourth Proportional to 28,443.52, 42,688.08 and 12,862.48

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Solution

The fourth proportional to 28,443.52, 42,688.08 and 12,862.48 is: 19,304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.52 : 42,688.08 = 12,862.48 : x
  2. Step 2: Convert to fraction form
    28,443.52/42,688.08 = 12,862.48/x
  3. Step 3: Cross multiply
    28,443.52x = 42,688.08 × 12,862.48
  4. Step 4: Simplify right side
    28,443.52x = 549,074,575.24
  5. Step 5: Solve for x
    x = 549,074,575.24/28,443.52
  6. Step 6: Final answer
    x = 19,304.03

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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.