Home / 42,031.04-63,047.40-12,449.36

Finding the Fourth Proportional to 42,031.04, 63,047.40 and 12,449.36

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Solution

The fourth proportional to 42,031.04, 63,047.40 and 12,449.36 is: 18,674.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,031.04 : 63,047.40 = 12,449.36 : x
  2. Step 2: Convert to fraction form
    42,031.04/63,047.40 = 12,449.36/x
  3. Step 3: Cross multiply
    42,031.04x = 63,047.40 × 12,449.36
  4. Step 4: Simplify right side
    42,031.04x = 784,899,779.66
  5. Step 5: Solve for x
    x = 784,899,779.66/42,031.04
  6. Step 6: Final answer
    x = 18,674.29

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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.