Home / 28,465.19-42,707.67-12,681.42

Finding the Fourth Proportional to 28,465.19, 42,707.67 and 12,681.42

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Solution

The fourth proportional to 28,465.19, 42,707.67 and 12,681.42 is: 19,026.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465.19 : 42,707.67 = 12,681.42 : x
  2. Step 2: Convert to fraction form
    28,465.19/42,707.67 = 12,681.42/x
  3. Step 3: Cross multiply
    28,465.19x = 42,707.67 × 12,681.42
  4. Step 4: Simplify right side
    28,465.19x = 541,593,837.08
  5. Step 5: Solve for x
    x = 541,593,837.08/28,465.19
  6. Step 6: Final answer
    x = 19,026.53

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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.