Home / 28,001.40-42,002.10-26,705.40

Finding the Fourth Proportional to 28,001.40, 42,002.10 and 26,705.40

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Solution

The fourth proportional to 28,001.40, 42,002.10 and 26,705.40 is: 40,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.40 : 42,002.10 = 26,705.40 : x
  2. Step 2: Convert to fraction form
    28,001.40/42,002.10 = 26,705.40/x
  3. Step 3: Cross multiply
    28,001.40x = 42,002.10 × 26,705.40
  4. Step 4: Simplify right side
    28,001.40x = 1,121,682,881.34
  5. Step 5: Solve for x
    x = 1,121,682,881.34/28,001.40
  6. Step 6: Final answer
    x = 40,058.10

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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.