Home / 20,045.34-27,661.59-10,970.46

Finding the Fourth Proportional to 20,045.34, 27,661.59 and 10,970.46

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Solution

The fourth proportional to 20,045.34, 27,661.59 and 10,970.46 is: 15,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.34 : 27,661.59 = 10,970.46 : x
  2. Step 2: Convert to fraction form
    20,045.34/27,661.59 = 10,970.46/x
  3. Step 3: Cross multiply
    20,045.34x = 27,661.59 × 10,970.46
  4. Step 4: Simplify right side
    20,045.34x = 303,460,366.63
  5. Step 5: Solve for x
    x = 303,460,366.63/20,045.34
  6. Step 6: Final answer
    x = 15,138.70

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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.