Home / 30,436.51-42,001.57-17,007.87

Finding the Fourth Proportional to 30,436.51, 42,001.57 and 17,007.87

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Solution

The fourth proportional to 30,436.51, 42,001.57 and 17,007.87 is: 23,470.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.51 : 42,001.57 = 17,007.87 : x
  2. Step 2: Convert to fraction form
    30,436.51/42,001.57 = 17,007.87/x
  3. Step 3: Cross multiply
    30,436.51x = 42,001.57 × 17,007.87
  4. Step 4: Simplify right side
    30,436.51x = 714,357,337.38
  5. Step 5: Solve for x
    x = 714,357,337.38/30,436.51
  6. Step 6: Final answer
    x = 23,470.41

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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.