Home / 25,430.46-35,088.64-15,356.94

Finding the Fourth Proportional to 25,430.46, 35,088.64 and 15,356.94

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Solution

The fourth proportional to 25,430.46, 35,088.64 and 15,356.94 is: 21,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,430.46 : 35,088.64 = 15,356.94 : x
  2. Step 2: Convert to fraction form
    25,430.46/35,088.64 = 15,356.94/x
  3. Step 3: Cross multiply
    25,430.46x = 35,088.64 × 15,356.94
  4. Step 4: Simplify right side
    25,430.46x = 538,854,252.94
  5. Step 5: Solve for x
    x = 538,854,252.94/25,430.46
  6. Step 6: Final answer
    x = 21,189.33

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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.