Home / 42,984.94-64,461-16,686.28

Finding the Fourth Proportional to 42,984.94, 64,461 and 16,686.28

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Solution

The fourth proportional to 42,984.94, 64,461 and 16,686.28 is: 25,023.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,984.94 : 64,461 = 16,686.28 : x
  2. Step 2: Convert to fraction form
    42,984.94/64,461 = 16,686.28/x
  3. Step 3: Cross multiply
    42,984.94x = 64,461 × 16,686.28
  4. Step 4: Simplify right side
    42,984.94x = 1,075,614,295.08
  5. Step 5: Solve for x
    x = 1,075,614,295.08/42,984.94
  6. Step 6: Final answer
    x = 25,023.05

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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.