Home / 30,979.64-46,476.59-10,988.07

Finding the Fourth Proportional to 30,979.64, 46,476.59 and 10,988.07

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Solution

The fourth proportional to 30,979.64, 46,476.59 and 10,988.07 is: 16,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.64 : 46,476.59 = 10,988.07 : x
  2. Step 2: Convert to fraction form
    30,979.64/46,476.59 = 10,988.07/x
  3. Step 3: Cross multiply
    30,979.64x = 46,476.59 × 10,988.07
  4. Step 4: Simplify right side
    30,979.64x = 510,687,969.34
  5. Step 5: Solve for x
    x = 510,687,969.34/30,979.64
  6. Step 6: Final answer
    x = 16,484.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.