Home / 31,426.29-43,345.66-21,337.22

Finding the Fourth Proportional to 31,426.29, 43,345.66 and 21,337.22

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Solution

The fourth proportional to 31,426.29, 43,345.66 and 21,337.22 is: 29,430.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.29 : 43,345.66 = 21,337.22 : x
  2. Step 2: Convert to fraction form
    31,426.29/43,345.66 = 21,337.22/x
  3. Step 3: Cross multiply
    31,426.29x = 43,345.66 × 21,337.22
  4. Step 4: Simplify right side
    31,426.29x = 924,875,712.76
  5. Step 5: Solve for x
    x = 924,875,712.76/31,426.29
  6. Step 6: Final answer
    x = 29,430.00

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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.