Home / 42,988.70-64,444.57-16,687.19

Finding the Fourth Proportional to 42,988.70, 64,444.57 and 16,687.19

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Solution

The fourth proportional to 42,988.70, 64,444.57 and 16,687.19 is: 25,015.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,988.70 : 64,444.57 = 16,687.19 : x
  2. Step 2: Convert to fraction form
    42,988.70/64,444.57 = 16,687.19/x
  3. Step 3: Cross multiply
    42,988.70x = 64,444.57 × 16,687.19
  4. Step 4: Simplify right side
    42,988.70x = 1,075,398,420.12
  5. Step 5: Solve for x
    x = 1,075,398,420.12/42,988.70
  6. Step 6: Final answer
    x = 25,015.84

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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.