Home / 31,041.64-42,838.24-16,895.28

Finding the Fourth Proportional to 31,041.64, 42,838.24 and 16,895.28

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Solution

The fourth proportional to 31,041.64, 42,838.24 and 16,895.28 is: 23,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,041.64 : 42,838.24 = 16,895.28 : x
  2. Step 2: Convert to fraction form
    31,041.64/42,838.24 = 16,895.28/x
  3. Step 3: Cross multiply
    31,041.64x = 42,838.24 × 16,895.28
  4. Step 4: Simplify right side
    31,041.64x = 723,764,059.51
  5. Step 5: Solve for x
    x = 723,764,059.51/31,041.64
  6. Step 6: Final answer
    x = 23,315.91

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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.