Home / 25,123.57-34,678.63-18,070.49

Finding the Fourth Proportional to 25,123.57, 34,678.63 and 18,070.49

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Solution

The fourth proportional to 25,123.57, 34,678.63 and 18,070.49 is: 24,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,123.57 : 34,678.63 = 18,070.49 : x
  2. Step 2: Convert to fraction form
    25,123.57/34,678.63 = 18,070.49/x
  3. Step 3: Cross multiply
    25,123.57x = 34,678.63 × 18,070.49
  4. Step 4: Simplify right side
    25,123.57x = 626,659,945.91
  5. Step 5: Solve for x
    x = 626,659,945.91/25,123.57
  6. Step 6: Final answer
    x = 24,943.11

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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.