Home / 31,088.18-42,901.65-16,941.03

Finding the Fourth Proportional to 31,088.18, 42,901.65 and 16,941.03

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Solution

The fourth proportional to 31,088.18, 42,901.65 and 16,941.03 is: 23,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,088.18 : 42,901.65 = 16,941.03 : x
  2. Step 2: Convert to fraction form
    31,088.18/42,901.65 = 16,941.03/x
  3. Step 3: Cross multiply
    31,088.18x = 42,901.65 × 16,941.03
  4. Step 4: Simplify right side
    31,088.18x = 726,798,139.70
  5. Step 5: Solve for x
    x = 726,798,139.70/31,088.18
  6. Step 6: Final answer
    x = 23,378.60

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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.