Home / 30,548.24-45,779.16-13,000.40

Finding the Fourth Proportional to 30,548.24, 45,779.16 and 13,000.40

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Solution

The fourth proportional to 30,548.24, 45,779.16 and 13,000.40 is: 19,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,548.24 : 45,779.16 = 13,000.40 : x
  2. Step 2: Convert to fraction form
    30,548.24/45,779.16 = 13,000.40/x
  3. Step 3: Cross multiply
    30,548.24x = 45,779.16 × 13,000.40
  4. Step 4: Simplify right side
    30,548.24x = 595,147,391.66
  5. Step 5: Solve for x
    x = 595,147,391.66/30,548.24
  6. Step 6: Final answer
    x = 19,482.22

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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.