Home / 26,421.23-39,637.02-9,781.40

Finding the Fourth Proportional to 26,421.23, 39,637.02 and 9,781.40

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Solution

The fourth proportional to 26,421.23, 39,637.02 and 9,781.40 is: 14,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,421.23 : 39,637.02 = 9,781.40 : x
  2. Step 2: Convert to fraction form
    26,421.23/39,637.02 = 9,781.40/x
  3. Step 3: Cross multiply
    26,421.23x = 39,637.02 × 9,781.40
  4. Step 4: Simplify right side
    26,421.23x = 387,705,300.34
  5. Step 5: Solve for x
    x = 387,705,300.34/26,421.23
  6. Step 6: Final answer
    x = 14,674.01

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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.