Home / 25,715.18-35,490.23-14,385.31

Finding the Fourth Proportional to 25,715.18, 35,490.23 and 14,385.31

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Solution

The fourth proportional to 25,715.18, 35,490.23 and 14,385.31 is: 19,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.18 : 35,490.23 = 14,385.31 : x
  2. Step 2: Convert to fraction form
    25,715.18/35,490.23 = 14,385.31/x
  3. Step 3: Cross multiply
    25,715.18x = 35,490.23 × 14,385.31
  4. Step 4: Simplify right side
    25,715.18x = 510,537,934.73
  5. Step 5: Solve for x
    x = 510,537,934.73/25,715.18
  6. Step 6: Final answer
    x = 19,853.56

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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.