Home / 29,047.61-40,075.86-18,443.40

Finding the Fourth Proportional to 29,047.61, 40,075.86 and 18,443.40

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Solution

The fourth proportional to 29,047.61, 40,075.86 and 18,443.40 is: 25,445.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,047.61 : 40,075.86 = 18,443.40 : x
  2. Step 2: Convert to fraction form
    29,047.61/40,075.86 = 18,443.40/x
  3. Step 3: Cross multiply
    29,047.61x = 40,075.86 × 18,443.40
  4. Step 4: Simplify right side
    29,047.61x = 739,135,035.20
  5. Step 5: Solve for x
    x = 739,135,035.20/29,047.61
  6. Step 6: Final answer
    x = 25,445.64

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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.