Home / 26,931.46-40,397.22-12,888.18

Finding the Fourth Proportional to 26,931.46, 40,397.22 and 12,888.18

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Solution

The fourth proportional to 26,931.46, 40,397.22 and 12,888.18 is: 19,332.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,931.46 : 40,397.22 = 12,888.18 : x
  2. Step 2: Convert to fraction form
    26,931.46/40,397.22 = 12,888.18/x
  3. Step 3: Cross multiply
    26,931.46x = 40,397.22 × 12,888.18
  4. Step 4: Simplify right side
    26,931.46x = 520,646,642.86
  5. Step 5: Solve for x
    x = 520,646,642.86/26,931.46
  6. Step 6: Final answer
    x = 19,332.28

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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.