Home / 28,017.36-38,651.70-18,444.91

Finding the Fourth Proportional to 28,017.36, 38,651.70 and 18,444.91

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Solution

The fourth proportional to 28,017.36, 38,651.70 and 18,444.91 is: 25,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.36 : 38,651.70 = 18,444.91 : x
  2. Step 2: Convert to fraction form
    28,017.36/38,651.70 = 18,444.91/x
  3. Step 3: Cross multiply
    28,017.36x = 38,651.70 × 18,444.91
  4. Step 4: Simplify right side
    28,017.36x = 712,927,127.85
  5. Step 5: Solve for x
    x = 712,927,127.85/28,017.36
  6. Step 6: Final answer
    x = 25,445.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.