Home / 28,946.64-43,420.86-9,971.07

Finding the Fourth Proportional to 28,946.64, 43,420.86 and 9,971.07

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Solution

The fourth proportional to 28,946.64, 43,420.86 and 9,971.07 is: 14,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.64 : 43,420.86 = 9,971.07 : x
  2. Step 2: Convert to fraction form
    28,946.64/43,420.86 = 9,971.07/x
  3. Step 3: Cross multiply
    28,946.64x = 43,420.86 × 9,971.07
  4. Step 4: Simplify right side
    28,946.64x = 432,952,434.52
  5. Step 5: Solve for x
    x = 432,952,434.52/28,946.64
  6. Step 6: Final answer
    x = 14,956.92

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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.